122066455212 has 72 divisors (see below), whose sum is σ = 332783710896. Its totient is φ = 37503333504.

The previous prime is 122066455211. The next prime is 122066455267. The reversal of 122066455212 is 212554660221.

122066455212 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 6 + 645 + 5 + 2 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (122066455211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124203 + ... + 509469.

Almost surely, 2^122066455212 is an apocalyptic number.

122066455212 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 122066455212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166391855448).

122066455212 is an abundant number, since it is smaller than the sum of its proper divisors (210717255684).

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

122066455212 is a wasteful number, since it uses less digits than its factorization.

122066455212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385967 (or 385962 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 122066455212 in words is "one hundred twenty-two billion, sixty-six million, four hundred fifty-five thousand, two hundred twelve".