221121101002 has 16 divisors (see below), whose sum is σ = 347993869824. Its totient is φ = 105240078000.

The previous prime is 221121100987. The next prime is 221121101011. The reversal of 221121101002 is 200101121122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29229574 + ... + 29237137.

It is an arithmetic number, because the mean of its divisors is an integer number (21749616864).

Almost surely, 2^221121101002 is an apocalyptic number.

221121101002 is a deficient number, since it is larger than the sum of its proper divisors (126872768822).

221121101002 is a wasteful number, since it uses less digits than its factorization.

221121101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58466805.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221121101002 its reverse (200101121122), we get a palindrome (421222222124).

The spelling of 221121101002 in words is "two hundred twenty-one billion, one hundred twenty-one million, one hundred one thousand, two".