111101010111212 has 48 divisors (see below), whose sum is σ = 214169668876800. Its totient is φ = 50008178895360.

The previous prime is 111101010111209. The next prime is 111101010111263. The reversal of 111101010111212 is 212111010101111.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116855489 + ... + 117802407.

It is an arithmetic number, because the mean of its divisors is an integer number (4461868101600).

Almost surely, 2^{111101010111212} is an apocalyptic number.

It is an amenable number.

111101010111212 is a deficient number, since it is larger than the sum of its proper divisors (103068658765588).

111101010111212 is a wasteful number, since it uses less digits than its factorization.

111101010111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972926 (or 972924 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 111101010111212 its reverse (212111010101111), we get a palindrome (323212020212323).

The spelling of 111101010111212 in words is "one hundred eleven trillion, one hundred one billion, ten million, one hundred eleven thousand, two hundred twelve".