121622564530 has 16 divisors (see below), whose sum is σ = 219132972864. Its totient is φ = 48601835440.

The previous prime is 121622564473. The next prime is 121622564537. The reversal of 121622564530 is 35465226121.

It is a self number, because there is not a number n which added to its sum of digits gives 121622564530.

It is not an unprimeable number, because it can be changed into a prime (121622564537) 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, 5887972 + ... + 5908591.

It is an arithmetic number, because the mean of its divisors is an integer number (13695810804).

Almost surely, 2^121622564530 is an apocalyptic number.

121622564530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121622564530 is a deficient number, since it is larger than the sum of its proper divisors (97510408334).

121622564530 is a wasteful number, since it uses less digits than its factorization.

121622564530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11797601.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 121622564530 in words is "one hundred twenty-one billion, six hundred twenty-two million, five hundred sixty-four thousand, five hundred thirty".