121590444222 has 32 divisors (see below), whose sum is σ = 290985680160. Its totient is φ = 37412444160.

The previous prime is 121590444211. The next prime is 121590444223. The reversal of 121590444222 is 222444095121.

121590444222 is a `hidden beast` number, since 1 + 2 + 1 + 590 + 4 + 4 + 42 + 22 = 666.

It is a super-2 number, since 2×121590444222² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121590444223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86602179 + ... + 86603582.

It is an arithmetic number, because the mean of its divisors is an integer number (9093302505).

Almost surely, 2^121590444222 is an apocalyptic number.

121590444222 is an abundant number, since it is smaller than the sum of its proper divisors (169395235938).

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

121590444222 is a wasteful number, since it uses less digits than its factorization.

121590444222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173205785 (or 173205779 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 121590444222 in words is "one hundred twenty-one billion, five hundred ninety million, four hundred forty-four thousand, two hundred twenty-two".