221010002121202 has 64 divisors (see below), whose sum is σ = 387180076308480. Its totient is φ = 92664479787264.

The previous prime is 221010002121199. The next prime is 221010002121211. The reversal of 221010002121202 is 202121200010122.

It is a happy number.

It is a super-2 number, since 2×221010002121202² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4276235253 + ... + 4276286935.

It is an arithmetic number, because the mean of its divisors is an integer number (6049688692320).

Almost surely, 2^{221010002121202} is an apocalyptic number.

221010002121202 is a deficient number, since it is larger than the sum of its proper divisors (166170074187278).

221010002121202 is a wasteful number, since it uses less digits than its factorization.

221010002121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87607.

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

Adding to 221010002121202 its reverse (202121200010122), we get a palindrome (423131202131324).

The spelling of 221010002121202 in words is "two hundred twenty-one trillion, ten billion, two million, one hundred twenty-one thousand, two hundred two".