122051356 has 36 divisors (see below), whose sum is σ = 249531408. Its totient is φ = 52082688.

The previous prime is 122051299. The next prime is 122051357. The reversal of 122051356 is 653150221.

It is a self number, because there is not a number n which added to its sum of digits gives 122051356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122051357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49161 + ... + 51583.

It is an arithmetic number, because the mean of its divisors is an integer number (6931428).

Almost surely, 2^122051356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122051356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124765704).

122051356 is an abundant number, since it is smaller than the sum of its proper divisors (127480052).

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

122051356 is a wasteful number, since it uses less digits than its factorization.

122051356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2698 (or 2689 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 122051356 is about 11047.6855494714. The cubic root of 122051356 is about 496.0371492727.

The spelling of 122051356 in words is "one hundred twenty-two million, fifty-one thousand, three hundred fifty-six".