22021202111121 has 12 divisors (see below), whose sum is σ = 31828320667572. Its totient is φ = 14671608660576.

The previous prime is 22021202111089. The next prime is 22021202111143. The reversal of 22021202111121 is 12111120212022.

22021202111121 is a `hidden beast` number, since 220 + 2 + 120 + 211 + 112 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3081994424721 + 18939207686400 = 1755561^2 + 4351920^2 .

It is not a de Polignac number, because 22021202111121 - 2⁵ = 22021202111089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22021202111094 and 22021202111103.

It is not an unprimeable number, because it can be changed into a prime (22021202111021) 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 11 ways as a sum of consecutive naturals, for example, 766047066 + ... + 766075811.

It is an arithmetic number, because the mean of its divisors is an integer number (2652360055631).

Almost surely, 2^{22021202111121} is an apocalyptic number.

It is an amenable number.

22021202111121 is a deficient number, since it is larger than the sum of its proper divisors (9807118556451).

22021202111121 is a wasteful number, since it uses less digits than its factorization.

22021202111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532124480 (or 1532124477 counting only the distinct ones).

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

Adding to 22021202111121 its reverse (12111120212022), we get a palindrome (34132322323143).

The spelling of 22021202111121 in words is "twenty-two trillion, twenty-one billion, two hundred two million, one hundred eleven thousand, one hundred twenty-one".