212264161772 has 24 divisors (see below), whose sum is σ = 421090849200. Its totient is φ = 92811859776.

The previous prime is 212264161741. The next prime is 212264161787. The reversal of 212264161772 is 277161462212.

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, 107420147 + ... + 107422122.

It is an arithmetic number, because the mean of its divisors is an integer number (17545452050).

Almost surely, 2^212264161772 is an apocalyptic number.

It is an amenable number.

212264161772 is a deficient number, since it is larger than the sum of its proper divisors (208826687428).

212264161772 is a wasteful number, since it uses less digits than its factorization.

212264161772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214842305 (or 214842303 counting only the distinct ones).

The product of its digits is 112896, while the sum is 41.

The spelling of 212264161772 in words is "two hundred twelve billion, two hundred sixty-four million, one hundred sixty-one thousand, seven hundred seventy-two".