102120111002 has 96 divisors (see below), whose sum is σ = 198761850000. Its totient is φ = 38957248512.

The previous prime is 102120110909. The next prime is 102120111011. The reversal of 102120111002 is 200111021201.

It can be written as a sum of positive squares in 8 ways, for example, as 63338292241 + 38781818761 = 251671^2 + 196931^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46144448 + ... + 46146660.

Almost surely, 2^102120111002 is an apocalyptic number.

102120111002 is a deficient number, since it is larger than the sum of its proper divisors (96641738998).

102120111002 is a wasteful number, since it uses less digits than its factorization.

102120111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3520 (or 3513 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102120111002 its reverse (200111021201), we get a palindrome (302231132203).

The spelling of 102120111002 in words is "one hundred two billion, one hundred twenty million, one hundred eleven thousand, two".