222102001200021 has 16 divisors (see below), whose sum is σ = 309012433082880. Its totient is φ = 141629824773360.

The previous prime is 222102001199957. The next prime is 222102001200043. The reversal of 222102001200021 is 120002100201222.

It is not a de Polignac number, because 222102001200021 - 2⁶ = 222102001199957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222102001200061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18355626 + ... + 27948756.

It is an arithmetic number, because the mean of its divisors is an integer number (19313277067680).

Almost surely, 2^{222102001200021} is an apocalyptic number.

It is an amenable number.

222102001200021 is a deficient number, since it is larger than the sum of its proper divisors (86910431882859).

222102001200021 is a wasteful number, since it uses less digits than its factorization.

222102001200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9928696.

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

Adding to 222102001200021 its reverse (120002100201222), we get a palindrome (342104101401243).

The spelling of 222102001200021 in words is "two hundred twenty-two trillion, one hundred two billion, one million, two hundred thousand, twenty-one".