85111212 has 12 divisors (see below), whose sum is σ = 198592856. Its totient is φ = 28370400.

The previous prime is 85111207. The next prime is 85111237. The reversal of 85111212 is 21211158.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3546289 + ... + 3546312.

Almost surely, 2^85111212 is an apocalyptic number.

It is an amenable number.

85111212 is an abundant number, since it is smaller than the sum of its proper divisors (113481644).

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

85111212 is a wasteful number, since it uses less digits than its factorization.

85111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7092608 (or 7092606 counting only the distinct ones).

The product of its digits is 160, while the sum is 21.

The square root of 85111212 is about 9225.5738032927. The cubic root of 85111212 is about 439.8746405961.

The spelling of 85111212 in words is "eighty-five million, one hundred eleven thousand, two hundred twelve".