20012211000220 has 24 divisors (see below), whose sum is σ = 42027854727600. Its totient is φ = 8004463137792.

The previous prime is 20012211000181. The next prime is 20012211000253. The reversal of 20012211000220 is 2200011221002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20012211000220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25939210 + ... + 26699569.

It is an arithmetic number, because the mean of its divisors is an integer number (1751160613650).

Almost surely, 2^{20012211000220} is an apocalyptic number.

20012211000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012211000220 is an abundant number, since it is smaller than the sum of its proper divisors (22015643727380).

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

20012211000220 is a wasteful number, since it uses less digits than its factorization.

20012211000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52657797 (or 52657795 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20012211000220 its reverse (2200011221002), we get a palindrome (22212222221222).

The spelling of 20012211000220 in words is "twenty trillion, twelve billion, two hundred eleven million, two hundred twenty", and thus it is an aban number.