312200021021 has 8 divisors (see below), whose sum is σ = 356807735424. Its totient is φ = 267594234480.

The previous prime is 312200021009. The next prime is 312200021039. The reversal of 312200021021 is 120120002213.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 312200021021 - 2³⁴ = 295020151837 is a prime.

It is a super-3 number, since 3×312200021021³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312200020987 and 312200021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312200027021) 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, 116465 + ... + 798726.

It is an arithmetic number, because the mean of its divisors is an integer number (44600966928).

Almost surely, 2^312200021021 is an apocalyptic number.

It is an amenable number.

312200021021 is a deficient number, since it is larger than the sum of its proper divisors (44607714403).

312200021021 is an equidigital number, since it uses as much as digits as its factorization.

312200021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963931.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 312200021021 its reverse (120120002213), we get a palindrome (432320023234).

The spelling of 312200021021 in words is "three hundred twelve billion, two hundred million, twenty-one thousand, twenty-one".