102111202001212 has 24 divisors (see below), whose sum is σ = 180467352549792. Its totient is φ = 50549120856000.

The previous prime is 102111202001093. The next prime is 102111202001231. The reversal of 102111202001212 is 212100202111201.

It is a congruent number.

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, 18660162 + ... + 23503702.

It is an arithmetic number, because the mean of its divisors is an integer number (7519473022908).

Almost surely, 2^{102111202001212} is an apocalyptic number.

It is an amenable number.

102111202001212 is a deficient number, since it is larger than the sum of its proper divisors (78356150548580).

102111202001212 is a wasteful number, since it uses less digits than its factorization.

102111202001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4895829 (or 4895827 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102111202001212 its reverse (212100202111201), we get a palindrome (314211404112413).

The spelling of 102111202001212 in words is "one hundred two trillion, one hundred eleven billion, two hundred two million, one thousand, two hundred twelve".