3156122020 has 12 divisors (see below), whose sum is σ = 6627856284. Its totient is φ = 1262448800.

The previous prime is 3156122003. The next prime is 3156122027. The reversal of 3156122020 is 202216513.

3156122020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2410613604 + 745508416 = 49098^2 + 27304^2 .

It is a super-2 number, since 2×3156122020² = 19922212410257760800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3156121982 and 3156122000.

It is not an unprimeable number, because it can be changed into a prime (3156122027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78903031 + ... + 78903070.

It is an arithmetic number, because the mean of its divisors is an integer number (552321357).

Almost surely, 2^3156122020 is an apocalyptic number.

It is an amenable number.

3156122020 is an abundant number, since it is smaller than the sum of its proper divisors (3471734264).

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

3156122020 is a wasteful number, since it uses less digits than its factorization.

3156122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157806110 (or 157806108 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 3156122020 is about 56179.3736170136. The cubic root of 3156122020 is about 1466.8462506227.

Adding to 3156122020 its reverse (202216513), we get a palindrome (3358338533).

The spelling of 3156122020 in words is "three billion, one hundred fifty-six million, one hundred twenty-two thousand, twenty".