212021120130 has 32 divisors (see below), whose sum is σ = 508899283200. Its totient is φ = 56533565952.

The previous prime is 212021120093. The next prime is 212021120249. The reversal of 212021120130 is 31021120212.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12975 + ... + 651314.

It is an arithmetic number, because the mean of its divisors is an integer number (15903102600).

Almost surely, 2^212021120130 is an apocalyptic number.

212021120130 is an abundant number, since it is smaller than the sum of its proper divisors (296878163070).

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

212021120130 is a wasteful number, since it uses less digits than its factorization.

212021120130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674938.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212021120130 its reverse (31021120212), we get a palindrome (243042240342).

The spelling of 212021120130 in words is "two hundred twelve billion, twenty-one million, one hundred twenty thousand, one hundred thirty".