212021133000 has 128 divisors (see below), whose sum is σ = 696322224000. Its totient is φ = 53563219200.

The previous prime is 212021132977. The next prime is 212021133017. The reversal of 212021133000 is 331120212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1802835 + ... + 1916834.

It is an arithmetic number, because the mean of its divisors is an integer number (5440017375).

Almost surely, 2^212021133000 is an apocalyptic number.

212021133000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212021133000 is an abundant number, since it is smaller than the sum of its proper divisors (484301091000).

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

212021133000 is a wasteful number, since it uses less digits than its factorization.

212021133000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719712 (or 3719698 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 212021133000 its reverse (331120212), we get a palindrome (212352253212).

The spelling of 212021133000 in words is "two hundred twelve billion, twenty-one million, one hundred thirty-three thousand".