212021110131 has 8 divisors (see below), whose sum is σ = 282750935040. Its totient is φ = 141319345992.

The previous prime is 212021110129. The next prime is 212021110157. The reversal of 212021110131 is 131011120212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212021110131 - 2¹ = 212021110129 is a prime.

It is a super-2 number, since 2×212021110131² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212021110131.

It is not an unprimeable number, because it can be changed into a prime (212021100131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6997555 + ... + 7027788.

It is an arithmetic number, because the mean of its divisors is an integer number (35343866880).

Almost surely, 2^212021110131 is an apocalyptic number.

212021110131 is a deficient number, since it is larger than the sum of its proper divisors (70729824909).

212021110131 is a wasteful number, since it uses less digits than its factorization.

212021110131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14030385.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 212021110131 its reverse (131011120212), we get a palindrome (343032230343).

The spelling of 212021110131 in words is "two hundred twelve billion, twenty-one million, one hundred ten thousand, one hundred thirty-one".