213120112220 has 12 divisors (see below), whose sum is σ = 447552235704. Its totient is φ = 85248044880.

The previous prime is 213120112207. The next prime is 213120112237. The reversal of 213120112220 is 22211021312.

It is a congruent number.

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, 5328002786 + ... + 5328002825.

It is an arithmetic number, because the mean of its divisors is an integer number (37296019642).

Almost surely, 2^213120112220 is an apocalyptic number.

213120112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213120112220 is an abundant number, since it is smaller than the sum of its proper divisors (234432123484).

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

213120112220 is a wasteful number, since it uses less digits than its factorization.

213120112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10656005620 (or 10656005618 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 213120112220 its reverse (22211021312), we get a palindrome (235331133532).

The spelling of 213120112220 in words is "two hundred thirteen billion, one hundred twenty million, one hundred twelve thousand, two hundred twenty".