1012012122020 has 48 divisors (see below), whose sum is σ = 2187647200368. Its totient is φ = 393072476160.

The previous prime is 1012012122019. The next prime is 1012012122061. The reversal of 1012012122020 is 202212102101.

It can be written as a sum of positive squares in 8 ways, for example, as 18625152676 + 993386969344 = 136474^2 + 996688^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1012012121986 and 1012012122004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4818461 + ... + 5024100.

It is an arithmetic number, because the mean of its divisors is an integer number (45575983341).

Almost surely, 2^{1012012122020} is an apocalyptic number.

1012012122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012012122020 is an abundant number, since it is smaller than the sum of its proper divisors (1175635078348).

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

1012012122020 is a wasteful number, since it uses less digits than its factorization.

1012012122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9842720 (or 9842718 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1012012122020 its reverse (202212102101), we get a palindrome (1214224224121).

The spelling of 1012012122020 in words is "one trillion, twelve billion, twelve million, one hundred twenty-two thousand, twenty".