22120312300212 has 48 divisors (see below), whose sum is σ = 58988129295872. Its totient is φ = 6320021747040.

The previous prime is 22120312300187. The next prime is 22120312300223. The reversal of 22120312300212 is 21200321302122.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6790887 + ... + 9505617.

Almost surely, 2^{22120312300212} is an apocalyptic number.

It is an amenable number.

22120312300212 is an abundant number, since it is smaller than the sum of its proper divisors (36867816995660).

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

22120312300212 is a wasteful number, since it uses less digits than its factorization.

22120312300212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811748 (or 2811746 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 22120312300212 its reverse (21200321302122), we get a palindrome (43320633602334).

The spelling of 22120312300212 in words is "twenty-two trillion, one hundred twenty billion, three hundred twelve million, three hundred thousand, two hundred twelve".