312223002021 has 48 divisors (see below), whose sum is σ = 534078504960. Its totient is φ = 172058009760.

The previous prime is 312223002019. The next prime is 312223002023. The reversal of 312223002021 is 120200322213.

312223002021 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (312223002019) and next prime (312223002023).

It is not a de Polignac number, because 312223002021 - 2¹ = 312223002019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312223001985 and 312223002003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312223002023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 515445 + ... + 943466.

It is an arithmetic number, because the mean of its divisors is an integer number (11126635520).

Almost surely, 2^312223002021 is an apocalyptic number.

It is an amenable number.

312223002021 is a deficient number, since it is larger than the sum of its proper divisors (221855502939).

312223002021 is a wasteful number, since it uses less digits than its factorization.

312223002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459046 (or 1459043 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 312223002021 its reverse (120200322213), we get a palindrome (432423324234).

The spelling of 312223002021 in words is "three hundred twelve billion, two hundred twenty-three million, two thousand, twenty-one".