102111020102012 has 48 divisors (see below), whose sum is σ = 191546737724160. Its totient is φ = 47460160887552.

The previous prime is 102111020101957. The next prime is 102111020102017. The reversal of 102111020102012 is 210201020111201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102111020102017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16578938 + ... + 21887969.

It is an arithmetic number, because the mean of its divisors is an integer number (3990557035920).

Almost surely, 2^{102111020102012} is an apocalyptic number.

It is an amenable number.

102111020102012 is a deficient number, since it is larger than the sum of its proper divisors (89435717622148).

102111020102012 is a wasteful number, since it uses less digits than its factorization.

102111020102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38467410 (or 38467408 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102111020102012 its reverse (210201020111201), we get a palindrome (312312040213213).

The spelling of 102111020102012 in words is "one hundred two trillion, one hundred eleven billion, twenty million, one hundred two thousand, twelve".