121622460 has 48 divisors (see below), whose sum is σ = 342540576. Its totient is φ = 32242432.

The previous prime is 121622419. The next prime is 121622461. The reversal of 121622460 is 64226121.

It is a self number, because there is not a number n which added to its sum of digits gives 121622460.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121622461) 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, 4522 + ... + 16238.

It is an arithmetic number, because the mean of its divisors is an integer number (7136262).

Almost surely, 2^121622460 is an apocalyptic number.

121622460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121622460 is an abundant number, since it is smaller than the sum of its proper divisors (220918116).

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

121622460 is a wasteful number, since it uses less digits than its factorization.

121622460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11902 (or 11900 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 121622460 is about 11028.2573419376. The cubic root of 121622460 is about 495.4554322878.

Adding to 121622460 its reverse (64226121), we get a palindrome (185848581).

The spelling of 121622460 in words is "one hundred twenty-one million, six hundred twenty-two thousand, four hundred sixty".