221211212202002 has 32 divisors (see below), whose sum is σ = 365568931323648. Its totient is φ = 99554192800000.

The previous prime is 221211212201929. The next prime is 221211212202017. The reversal of 221211212202002 is 200202212112122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336595802 + ... + 337252362.

It is an arithmetic number, because the mean of its divisors is an integer number (11424029103864).

Almost surely, 2^{221211212202002} is an apocalyptic number.

221211212202002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221211212202002 is a deficient number, since it is larger than the sum of its proper divisors (144357719121646).

221211212202002 is a wasteful number, since it uses less digits than its factorization.

221211212202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808306.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 221211212202002 its reverse (200202212112122), we get a palindrome (421413424314124).

The spelling of 221211212202002 in words is "two hundred twenty-one trillion, two hundred eleven billion, two hundred twelve million, two hundred two thousand, two".