222021022101101 has 4 divisors (see below), whose sum is σ = 222022063547100. Its totient is φ = 222019980655104.

The previous prime is 222021022101037. The next prime is 222021022101103. The reversal of 222021022101101 is 101101220120222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66547579828900 + 155473442272201 = 8157670^2 + 12468899^2 .

It is a cyclic number.

It is not a de Polignac number, because 222021022101101 - 2⁶ = 222021022101037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222021022101101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222021022101103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520403156 + ... + 520829613.

It is an arithmetic number, because the mean of its divisors is an integer number (55505515886775).

Almost surely, 2^{222021022101101} is an apocalyptic number.

It is an amenable number.

222021022101101 is a deficient number, since it is larger than the sum of its proper divisors (1041445999).

222021022101101 is a wasteful number, since it uses less digits than its factorization.

222021022101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041445998.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222021022101101 its reverse (101101220120222), we get a palindrome (323122242221323).

The spelling of 222021022101101 in words is "two hundred twenty-two trillion, twenty-one billion, twenty-two million, one hundred one thousand, one hundred one".