102111221002 has 16 divisors (see below), whose sum is σ = 175061541312. Its totient is φ = 43758518400.

The previous prime is 102111220949. The next prime is 102111221027. The reversal of 102111221002 is 200122111201.

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, 96999 + ... + 462202.

It is an arithmetic number, because the mean of its divisors is an integer number (10941346332).

Almost surely, 2^102111221002 is an apocalyptic number.

102111221002 is a deficient number, since it is larger than the sum of its proper divisors (72950320310).

102111221002 is a wasteful number, since it uses less digits than its factorization.

102111221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572253.

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

Adding to 102111221002 its reverse (200122111201), we get a palindrome (302233332203).

The spelling of 102111221002 in words is "one hundred two billion, one hundred eleven million, two hundred twenty-one thousand, two".