20210012122220 has 48 divisors (see below), whose sum is σ = 42736501862208. Its totient is φ = 8027817369600.

The previous prime is 20210012122219. The next prime is 20210012122229. The reversal of 20210012122220 is 2222121001202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20210012122229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521420 + ... + 6379020.

It is an arithmetic number, because the mean of its divisors is an integer number (890343788796).

Almost surely, 2^{20210012122220} is an apocalyptic number.

20210012122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210012122220 is an abundant number, since it is smaller than the sum of its proper divisors (22526489739988).

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

20210012122220 is a wasteful number, since it uses less digits than its factorization.

20210012122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5858810 (or 5858808 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20210012122220 its reverse (2222121001202), we get a palindrome (22432133123422).

The spelling of 20210012122220 in words is "twenty trillion, two hundred ten billion, twelve million, one hundred twenty-two thousand, two hundred twenty".