213212021130 has 48 divisors (see below), whose sum is σ = 563747052960. Its totient is φ = 55892867424.

The previous prime is 213212021089. The next prime is 213212021153. The reversal of 213212021130 is 31120212312.

213212021130 is a `hidden beast` number, since 213 + 212 + 0 + 211 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20071152 + ... + 20081771.

It is an arithmetic number, because the mean of its divisors is an integer number (11744730270).

Almost surely, 2^213212021130 is an apocalyptic number.

213212021130 is an abundant number, since it is smaller than the sum of its proper divisors (350535031830).

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

213212021130 is a wasteful number, since it uses less digits than its factorization.

213212021130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40152995 (or 40152992 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 213212021130 its reverse (31120212312), we get a palindrome (244332233442).

The spelling of 213212021130 in words is "two hundred thirteen billion, two hundred twelve million, twenty-one thousand, one hundred thirty".