13012122020 has 24 divisors (see below), whose sum is σ = 27906850944. Its totient is φ = 5094106976.

The previous prime is 13012122017. The next prime is 13012122043. The reversal of 13012122020 is 2022121031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13012121986 and 13012122004.

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, 6920402 + ... + 6922281.

It is an arithmetic number, because the mean of its divisors is an integer number (1162785456).

Almost surely, 2^13012122020 is an apocalyptic number.

13012122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13012122020 is an abundant number, since it is smaller than the sum of its proper divisors (14894728924).

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

13012122020 is a wasteful number, since it uses less digits than its factorization.

13012122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13842739 (or 13842737 counting only the distinct ones).

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

Adding to 13012122020 its reverse (2022121031), we get a palindrome (15034243051).

The spelling of 13012122020 in words is "thirteen billion, twelve million, one hundred twenty-two thousand, twenty".