212120120031 has 8 divisors (see below), whose sum is σ = 284861552640. Its totient is φ = 140396050392.

The previous prime is 212120119969. The next prime is 212120120033. The reversal of 212120120031 is 130021021212.

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

It is not a de Polignac number, because 212120120031 - 2¹⁴ = 212120103647 is a prime.

It is a super-2 number, since 2×212120120031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212120120033) 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, 254340255 + ... + 254341088.

It is an arithmetic number, because the mean of its divisors is an integer number (35607694080).

Almost surely, 2^212120120031 is an apocalyptic number.

212120120031 is a deficient number, since it is larger than the sum of its proper divisors (72741432609).

212120120031 is a wasteful number, since it uses less digits than its factorization.

212120120031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508681485.

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

Adding to 212120120031 its reverse (130021021212), we get a palindrome (342141141243).

The spelling of 212120120031 in words is "two hundred twelve billion, one hundred twenty million, one hundred twenty thousand, thirty-one".