22112102111021 has 8 divisors (see below), whose sum is σ = 23813137992504. Its totient is φ = 20411081222400.

The previous prime is 22112102110991. The next prime is 22112102111051. The reversal of 22112102111021 is 12011120121122.

It is an interprime number because it is at equal distance from previous prime (22112102110991) and next prime (22112102111051).

It can be written as a sum of positive squares in 4 ways, for example, as 110040100 + 22111992070921 = 10490^2 + 4702339^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22112102111021 - 2¹⁸ = 22112101848877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112102111051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586280 + ... + 6675921.

It is an arithmetic number, because the mean of its divisors is an integer number (2976642249063).

Almost surely, 2^{22112102111021} is an apocalyptic number.

It is an amenable number.

22112102111021 is a deficient number, since it is larger than the sum of its proper divisors (1701035881483).

22112102111021 is a wasteful number, since it uses less digits than its factorization.

22112102111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7496431.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22112102111021 its reverse (12011120121122), we get a palindrome (34123222232143).

The spelling of 22112102111021 in words is "twenty-two trillion, one hundred twelve billion, one hundred two million, one hundred eleven thousand, twenty-one".