10001022022021 has 8 divisors (see below), whose sum is σ = 10044791020280. Its totient is φ = 9957253862592.

The previous prime is 10001022021979. The next prime is 10001022022081. The reversal of 10001022022021 is 12022022010001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4133780248900 + 5867241773121 = 2033170^2 + 2422239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10001022022021 - 2⁴¹ = 7801998766469 is a prime.

It is a super-2 number, since 2×10001022022021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10001022021992 and 10001022022010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001022022081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44215411 + ... + 44441023.

It is an arithmetic number, because the mean of its divisors is an integer number (1255598877535).

Almost surely, 2^{10001022022021} is an apocalyptic number.

It is an amenable number.

10001022022021 is a deficient number, since it is larger than the sum of its proper divisors (43768998259).

10001022022021 is a wasteful number, since it uses less digits than its factorization.

10001022022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419415.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10001022022021 its reverse (12022022010001), we get a palindrome (22023044032022).

The spelling of 10001022022021 in words is "ten trillion, one billion, twenty-two million, twenty-two thousand, twenty-one".