212213033120 has 72 divisors (see below), whose sum is σ = 551074328532. Its totient is φ = 77168368640.

The previous prime is 212213033107. The next prime is 212213033173. The reversal of 212213033120 is 21330312212.

It can be written as a sum of positive squares in 2 ways, for example, as 203520081424 + 8692951696 = 451132^2 + 93236^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 212213033092 and 212213033101.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5461349 + ... + 5500068.

Almost surely, 2^212213033120 is an apocalyptic number.

212213033120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212213033120 is an abundant number, since it is smaller than the sum of its proper divisors (338861295412).

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

212213033120 is a wasteful number, since it uses less digits than its factorization.

212213033120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10961454 (or 10961435 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212213033120 its reverse (21330312212), we get a palindrome (233543345332).

The spelling of 212213033120 in words is "two hundred twelve billion, two hundred thirteen million, thirty-three thousand, one hundred twenty".