22102021201021 has 16 divisors (see below), whose sum is σ = 22845886560640. Its totient is φ = 21368793176640.

The previous prime is 22102021200997. The next prime is 22102021201031. The reversal of 22102021201021 is 12010212020122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22102021201021 - 2²¹ = 22102019103869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22102021200986 and 22102021201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102021201031) 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 15 ways as a sum of consecutive naturals, for example, 8713375 + ... + 10960243.

It is an arithmetic number, because the mean of its divisors is an integer number (1427867910040).

Almost surely, 2^{22102021201021} is an apocalyptic number.

It is an amenable number.

22102021201021 is a deficient number, since it is larger than the sum of its proper divisors (743865359619).

22102021201021 is a wasteful number, since it uses less digits than its factorization.

22102021201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249236.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22102021201021 its reverse (12010212020122), we get a palindrome (34112233221143).

The spelling of 22102021201021 in words is "twenty-two trillion, one hundred two billion, twenty-one million, two hundred one thousand, twenty-one".