102120111010002 has 64 divisors (see below), whose sum is σ = 211189133652480. Its totient is φ = 32906787922944.

The previous prime is 102120111009827. The next prime is 102120111010007. The reversal of 102120111010002 is 200010111021201.

It is a self number, because there is not a number n which added to its sum of digits gives 102120111010002.

It is not an unprimeable number, because it can be changed into a prime (102120111010007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6030613 + ... + 15511560.

It is an arithmetic number, because the mean of its divisors is an integer number (3299830213320).

Almost surely, 2^{102120111010002} is an apocalyptic number.

102120111010002 is an abundant number, since it is smaller than the sum of its proper divisors (109069022642478).

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

102120111010002 is a wasteful number, since it uses less digits than its factorization.

102120111010002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21542467.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102120111010002 its reverse (200010111021201), we get a palindrome (302130222031203).

The spelling of 102120111010002 in words is "one hundred two trillion, one hundred twenty billion, one hundred eleven million, ten thousand, two".