102202111121212 has 24 divisors (see below), whose sum is σ = 179107313355936. Its totient is φ = 51028618195968.

The previous prime is 102202111121203. The next prime is 102202111121221. The reversal of 102202111121212 is 212121111202201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102202111121203) and next prime (102202111121221).

It is a self number, because there is not a number n which added to its sum of digits gives 102202111121212.

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, 13108428 + ... + 19396780.

It is an arithmetic number, because the mean of its divisors is an integer number (7462804723164).

Almost surely, 2^{102202111121212} is an apocalyptic number.

It is an amenable number.

102202111121212 is a deficient number, since it is larger than the sum of its proper divisors (76905202234724).

102202111121212 is a wasteful number, since it uses less digits than its factorization.

102202111121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6294117 (or 6294115 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102202111121212 its reverse (212121111202201), we get a palindrome (314323222323413).

The spelling of 102202111121212 in words is "one hundred two trillion, two hundred two billion, one hundred eleven million, one hundred twenty-one thousand, two hundred twelve".