102101220111212 has 24 divisors (see below), whose sum is σ = 204645395650080. Its totient is φ = 43662746741760.

The previous prime is 102101220111167. The next prime is 102101220111221. The reversal of 102101220111212 is 212111022101201.

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, 3954946037 + ... + 3954971852.

It is an arithmetic number, because the mean of its divisors is an integer number (8526891485420).

Almost surely, 2^{102101220111212} is an apocalyptic number.

It is an amenable number.

102101220111212 is an abundant number, since it is smaller than the sum of its proper divisors (102544175538868).

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

102101220111212 is a wasteful number, since it uses less digits than its factorization.

102101220111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7909918361 (or 7909918359 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102101220111212 its reverse (212111022101201), we get a palindrome (314212242212413).

The spelling of 102101220111212 in words is "one hundred two trillion, one hundred one billion, two hundred twenty million, one hundred eleven thousand, two hundred twelve".