22120212021111 has 16 divisors (see below), whose sum is σ = 32771006553600. Its totient is φ = 14746663079064.

The previous prime is 22120212021101. The next prime is 22120212021119. The reversal of 22120212021111 is 11112021202122.

22120212021111 is a `hidden beast` number, since 221 + 20 + 212 + 0 + 211 + 1 + 1 = 666.

It is not a de Polignac number, because 22120212021111 - 2³⁸ = 21845334114167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120212021119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1191631 + ... + 6757248.

It is an arithmetic number, because the mean of its divisors is an integer number (2048187909600).

Almost surely, 2^{22120212021111} is an apocalyptic number.

22120212021111 is a deficient number, since it is larger than the sum of its proper divisors (10650794532489).

22120212021111 is a wasteful number, since it uses less digits than its factorization.

22120212021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8051955 (or 8051949 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22120212021111 its reverse (11112021202122), we get a palindrome (33232233223233).

The spelling of 22120212021111 in words is "twenty-two trillion, one hundred twenty billion, two hundred twelve million, twenty-one thousand, one hundred eleven".