121486422538 has 16 divisors (see below), whose sum is σ = 196463705760. Its totient is φ = 56008825776.

The previous prime is 121486422523. The next prime is 121486422539. The reversal of 121486422538 is 835224684121.

It is a super-2 number, since 2×121486422538² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121486422539) 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, 2552248 + ... + 2599411.

It is an arithmetic number, because the mean of its divisors is an integer number (12278981610).

Almost surely, 2^121486422538 is an apocalyptic number.

121486422538 is a deficient number, since it is larger than the sum of its proper divisors (74977283222).

121486422538 is a wasteful number, since it uses less digits than its factorization.

121486422538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5152581.

The product of its digits is 737280, while the sum is 46.

The spelling of 121486422538 in words is "one hundred twenty-one billion, four hundred eighty-six million, four hundred twenty-two thousand, five hundred thirty-eight".