122220111001212 has 72 divisors (see below), whose sum is σ = 362623032067296. Its totient is φ = 33976247071104.

The previous prime is 122220111001169. The next prime is 122220111001253. The reversal of 122220111001212 is 212100111022221.

122220111001212 is a `hidden beast` number, since 122 + 220 + 1 + 110 + 0 + 1 + 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, 6554050683 + ... + 6554069330.

Almost surely, 2^{122220111001212} is an apocalyptic number.

122220111001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122220111001212 is an abundant number, since it is smaller than the sum of its proper divisors (240402921066084).

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

122220111001212 is a wasteful number, since it uses less digits than its factorization.

122220111001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13108120067 (or 13108120062 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 122220111001212 its reverse (212100111022221), we get a palindrome (334320222023433).

The spelling of 122220111001212 in words is "one hundred twenty-two trillion, two hundred twenty billion, one hundred eleven million, one thousand, two hundred twelve".