212213231020 has 48 divisors (see below), whose sum is σ = 509730661440. Its totient is φ = 72698978304.

The previous prime is 212213230997. The next prime is 212213231023. The reversal of 212213231020 is 20132312212.

It is not an unprimeable number, because it can be changed into a prime (212213231023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452385 + ... + 793144.

It is an arithmetic number, because the mean of its divisors is an integer number (10619388780).

Almost surely, 2^212213231020 is an apocalyptic number.

212213231020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212213231020 is an abundant number, since it is smaller than the sum of its proper divisors (297517430420).

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

212213231020 is a wasteful number, since it uses less digits than its factorization.

212213231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246762 (or 1246760 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212213231020 its reverse (20132312212), we get a palindrome (232345543232).

The spelling of 212213231020 in words is "two hundred twelve billion, two hundred thirteen million, two hundred thirty-one thousand, twenty".