22210001021021 has 64 divisors (see below), whose sum is σ = 25710438666240. Its totient is φ = 18974487168000.

The previous prime is 22210001020943. The next prime is 22210001021029. The reversal of 22210001021021 is 12012010001222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22210001021021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22210001020987 and 22210001021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210001021029) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16737000860 + ... + 16737002186.

It is an arithmetic number, because the mean of its divisors is an integer number (401725604160).

Almost surely, 2^{22210001021021} is an apocalyptic number.

It is an amenable number.

22210001021021 is a deficient number, since it is larger than the sum of its proper divisors (3500437645219).

22210001021021 is a wasteful number, since it uses less digits than its factorization.

22210001021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706.

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

Adding to 22210001021021 its reverse (12012010001222), we get a palindrome (34222011022243).

The spelling of 22210001021021 in words is "twenty-two trillion, two hundred ten billion, one million, twenty-one thousand, twenty-one".