20210220220212 has 72 divisors (see below), whose sum is σ = 55757616026112. Its totient is φ = 6121407763200.

The previous prime is 20210220220139. The next prime is 20210220220249. The reversal of 20210220220212 is 21202202201202.

20210220220212 is a `hidden beast` number, since 2 + 0 + 2 + 10 + 220 + 220 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11252133 + ... + 12924044.

It is an arithmetic number, because the mean of its divisors is an integer number (774411333696).

Almost surely, 2^{20210220220212} is an apocalyptic number.

20210220220212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20210220220212 is an abundant number, since it is smaller than the sum of its proper divisors (35547395805900).

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

20210220220212 is a wasteful number, since it uses less digits than its factorization.

20210220220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24178309 (or 24178304 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20210220220212 its reverse (21202202201202), we get a palindrome (41412422421414).

The spelling of 20210220220212 in words is "twenty trillion, two hundred ten billion, two hundred twenty million, two hundred twenty thousand, two hundred twelve".