122200111021212 has 288 divisors, whose sum is σ = 365705990832000. Its totient is φ = 33677395163136.

The previous prime is 122200111021181. The next prime is 122200111021217. The reversal of 122200111021212 is 212120111002221.

122200111021212 is a `hidden beast` number, since 122 + 200 + 1 + 110 + 21 + 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 not an unprimeable number, because it can be changed into a prime (122200111021217) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 562846614 + ... + 563063682.

Almost surely, 2^{122200111021212} is an apocalyptic number.

122200111021212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122200111021212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182852995416000).

122200111021212 is an abundant number, since it is smaller than the sum of its proper divisors (243505879810788).

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

122200111021212 is a wasteful number, since it uses less digits than its factorization.

122200111021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217645 (or 217640 counting only the distinct ones).

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

Adding to 122200111021212 its reverse (212120111002221), we get a palindrome (334320222023433).

The spelling of 122200111021212 in words is "one hundred twenty-two trillion, two hundred billion, one hundred eleven million, twenty-one thousand, two hundred twelve".