22102002201021 has 8 divisors (see below), whose sum is σ = 29473765775520. Its totient is φ = 14732453380272.

The previous prime is 22102002201017. The next prime is 22102002201053. The reversal of 22102002201021 is 12010220020122.

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

It is not a de Polignac number, because 22102002201021 - 2² = 22102002201017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102002201001) 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, 553665151 + ... + 553705068.

It is an arithmetic number, because the mean of its divisors is an integer number (3684220721940).

Almost surely, 2^{22102002201021} is an apocalyptic number.

It is an amenable number.

22102002201021 is a deficient number, since it is larger than the sum of its proper divisors (7371763574499).

22102002201021 is a wasteful number, since it uses less digits than its factorization.

22102002201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107376875.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22102002201021 its reverse (12010220020122), we get a palindrome (34112222221143).

The spelling of 22102002201021 in words is "twenty-two trillion, one hundred two billion, two million, two hundred one thousand, twenty-one".