121588227436 has 24 divisors (see below), whose sum is σ = 231415836624. Its totient is φ = 55562020800.

The previous prime is 121588227389. The next prime is 121588227437. The reversal of 121588227436 is 634722885121.

It is a self number, because there is not a number n which added to its sum of digits gives 121588227436.

It is not an unprimeable number, because it can be changed into a prime (121588227437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11570170 + ... + 11580673.

It is an arithmetic number, because the mean of its divisors is an integer number (9642326526).

Almost surely, 2^121588227436 is an apocalyptic number.

It is an amenable number.

121588227436 is a deficient number, since it is larger than the sum of its proper divisors (109827609188).

121588227436 is a wasteful number, since it uses less digits than its factorization.

121588227436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23150961 (or 23150959 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 49.

The spelling of 121588227436 in words is "one hundred twenty-one billion, five hundred eighty-eight million, two hundred twenty-seven thousand, four hundred thirty-six".