20222200111212 has 72 divisors (see below), whose sum is σ = 55764806610240. Its totient is φ = 6127878129120.

The previous prime is 20222200111067. The next prime is 20222200111273. The reversal of 20222200111212 is 21211100222202.

It is a happy number.

20222200111212 is a `hidden beast` number, since 20 + 222 + 200 + 1 + 11 + 212 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53818863 + ... + 54193305.

It is an arithmetic number, because the mean of its divisors is an integer number (774511202920).

Almost surely, 2^{20222200111212} is an apocalyptic number.

20222200111212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20222200111212 is an abundant number, since it is smaller than the sum of its proper divisors (35542606499028).

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

20222200111212 is a wasteful number, since it uses less digits than its factorization.

20222200111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510843 (or 510838 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20222200111212 its reverse (21211100222202), we get a palindrome (41433300333414).

The spelling of 20222200111212 in words is "twenty trillion, two hundred twenty-two billion, two hundred million, one hundred eleven thousand, two hundred twelve".