212021110312 has 32 divisors (see below), whose sum is σ = 452535180480. Its totient is φ = 92183090560.

The previous prime is 212021110303. The next prime is 212021110321. The reversal of 212021110312 is 213011120212.

It is an interprime number because it is at equal distance from previous prime (212021110303) and next prime (212021110321).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52374733 + ... + 52378780.

It is an arithmetic number, because the mean of its divisors is an integer number (14141724390).

Almost surely, 2^212021110312 is an apocalyptic number.

212021110312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212021110312 is an abundant number, since it is smaller than the sum of its proper divisors (240514070168).

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

212021110312 is a wasteful number, since it uses less digits than its factorization.

212021110312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104753553 (or 104753549 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 212021110312 its reverse (213011120212), we get a palindrome (425032230524).

The spelling of 212021110312 in words is "two hundred twelve billion, twenty-one million, one hundred ten thousand, three hundred twelve".