20012002210020 has 24 divisors (see below), whose sum is σ = 56033606188224. Its totient is φ = 5336533922656.

The previous prime is 20012002209943. The next prime is 20012002210049. The reversal of 20012002210020 is 2001220021002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20012002209978 and 20012002210005.

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, 166766685024 + ... + 166766685143.

It is an arithmetic number, because the mean of its divisors is an integer number (2334733591176).

Almost surely, 2^{20012002210020} is an apocalyptic number.

20012002210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012002210020 is an abundant number, since it is smaller than the sum of its proper divisors (36021603978204).

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

20012002210020 is a wasteful number, since it uses less digits than its factorization.

20012002210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333533370179 (or 333533370177 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20012002210020 its reverse (2001220021002), we get a palindrome (22013222231022).

The spelling of 20012002210020 in words is "twenty trillion, twelve billion, two million, two hundred ten thousand, twenty".