3123220002021 has 72 divisors (see below), whose sum is σ = 5363251817664. Its totient is φ = 1715558261760.

The previous prime is 3123220002011. The next prime is 3123220002103. The reversal of 3123220002021 is 1202000223213.

3123220002021 is a `hidden beast` number, since 31 + 232 + 200 + 0 + 202 + 1 = 666.

It is not a de Polignac number, because 3123220002021 - 2⁹ = 3123220001509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3123220001985 and 3123220002003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123220002011) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 11897301 + ... + 12156981.

Almost surely, 2^{3123220002021} is an apocalyptic number.

It is an amenable number.

3123220002021 is a deficient number, since it is larger than the sum of its proper divisors (2240031815643).

3123220002021 is a wasteful number, since it uses less digits than its factorization.

3123220002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259979 (or 259947 counting only the distinct ones).

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

Adding to 3123220002021 its reverse (1202000223213), we get a palindrome (4325220225234).

The spelling of 3123220002021 in words is "three trillion, one hundred twenty-three billion, two hundred twenty million, two thousand, twenty-one".