221012212002 has 32 divisors (see below), whose sum is σ = 443109139200. Its totient is φ = 73490027520.

The previous prime is 221012211949. The next prime is 221012212033. The reversal of 221012212002 is 200212210122.

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, 19533927 + ... + 19545237.

It is an arithmetic number, because the mean of its divisors is an integer number (13847160600).

Almost surely, 2^221012212002 is an apocalyptic number.

221012212002 is an abundant number, since it is smaller than the sum of its proper divisors (222096927198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221012212002 is a wasteful number, since it uses less digits than its factorization.

221012212002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19018.

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

Adding to 221012212002 its reverse (200212210122), we get a palindrome (421224422124).

The spelling of 221012212002 in words is "two hundred twenty-one billion, twelve million, two hundred twelve thousand, two".