22021020210111 has 32 divisors (see below), whose sum is σ = 31638216357888. Its totient is φ = 13543560167040.

The previous prime is 22021020210073. The next prime is 22021020210131. The reversal of 22021020210111 is 11101202012022.

It is not a de Polignac number, because 22021020210111 - 2²⁶ = 22020953101247 is a prime.

It is a super-2 number, since 2×22021020210111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021020210131) 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 31 ways as a sum of consecutive naturals, for example, 1296336960 + ... + 1296353946.

It is an arithmetic number, because the mean of its divisors is an integer number (988694261184).

Almost surely, 2^{22021020210111} is an apocalyptic number.

22021020210111 is a deficient number, since it is larger than the sum of its proper divisors (9617196147777).

22021020210111 is a wasteful number, since it uses less digits than its factorization.

22021020210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34271.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22021020210111 its reverse (11101202012022), we get a palindrome (33122222222133).

The spelling of 22021020210111 in words is "twenty-two trillion, twenty-one billion, twenty million, two hundred ten thousand, one hundred eleven".