42211525122 has 72 divisors (see below), whose sum is σ = 99088052544. Its totient is φ = 12981170592.

The previous prime is 42211525093. The next prime is 42211525127. The reversal of 42211525122 is 22152511224.

42211525122 is a `hidden beast` number, since 4 + 2 + 2 + 11 + 525 + 122 = 666.

It is a super-2 number, since 2×42211525122² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42211525127) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10532443 + ... + 10536449.

It is an arithmetic number, because the mean of its divisors is an integer number (1376222952).

Almost surely, 2^42211525122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42211525122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49544026272).

42211525122 is an abundant number, since it is smaller than the sum of its proper divisors (56876527422).

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

42211525122 is a wasteful number, since it uses less digits than its factorization.

42211525122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7504 (or 7488 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The spelling of 42211525122 in words is "forty-two billion, two hundred eleven million, five hundred twenty-five thousand, one hundred twenty-two".