20012000002220 has 24 divisors (see below), whose sum is σ = 42026221443024. Its totient is φ = 8004605441216.

The previous prime is 20012000002213. The next prime is 20012000002249. The reversal of 20012000002220 is 2220000021002.

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, 11315114 + ... + 12963633.

It is an arithmetic number, because the mean of its divisors is an integer number (1751092560126).

Almost surely, 2^{20012000002220} is an apocalyptic number.

20012000002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012000002220 is an abundant number, since it is smaller than the sum of its proper divisors (22014221440804).

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

20012000002220 is a wasteful number, since it uses less digits than its factorization.

20012000002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24319969 (or 24319967 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20012000002220 its reverse (2220000021002), we get a palindrome (22232000023222).

The spelling of 20012000002220 in words is "twenty trillion, twelve billion, two thousand, two hundred twenty".