212233213228 has 12 divisors (see below), whose sum is σ = 372377859840. Its totient is φ = 105839538992.

The previous prime is 212233213219. The next prime is 212233213229. The reversal of 212233213228 is 822312332212.

It is a self number, because there is not a number n which added to its sum of digits gives 212233213228.

It is not an unprimeable number, because it can be changed into a prime (212233213229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69265183 + ... + 69268246.

It is an arithmetic number, because the mean of its divisors is an integer number (31031488320).

Almost surely, 2^212233213228 is an apocalyptic number.

It is an amenable number.

212233213228 is a deficient number, since it is larger than the sum of its proper divisors (160144646612).

212233213228 is a wasteful number, since it uses less digits than its factorization.

212233213228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138533816 (or 138533814 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The spelling of 212233213228 in words is "two hundred twelve billion, two hundred thirty-three million, two hundred thirteen thousand, two hundred twenty-eight".