20021001222110 has 32 divisors (see below), whose sum is σ = 41186260700352. Its totient is φ = 6864309768960.

The previous prime is 20021001222107. The next prime is 20021001222119. The reversal of 20021001222110 is 1122210012002.

It is a super-2 number, since 2×20021001222110² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021001222119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16886114 + ... + 18032826.

It is an arithmetic number, because the mean of its divisors is an integer number (1287070646886).

Almost surely, 2^{20021001222110} is an apocalyptic number.

20021001222110 is an abundant number, since it is smaller than the sum of its proper divisors (21165259478242).

20021001222110 is a wasteful number, since it uses less digits than its factorization.

20021001222110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396148.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20021001222110 its reverse (1122210012002), we get a palindrome (21143211234112).

The spelling of 20021001222110 in words is "twenty trillion, twenty-one billion, one million, two hundred twenty-two thousand, one hundred ten".