121662150 has 24 divisors (see below), whose sum is σ = 301722504. Its totient is φ = 32443200.

The previous prime is 121662143. The next prime is 121662209. The reversal of 121662150 is 51266121.

It is a self number, because there is not a number n which added to its sum of digits gives 121662150.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 405391 + ... + 405690.

It is an arithmetic number, because the mean of its divisors is an integer number (12571771).

Almost surely, 2^121662150 is an apocalyptic number.

121662150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121662150 is an abundant number, since it is smaller than the sum of its proper divisors (180060354).

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

121662150 is a wasteful number, since it uses less digits than its factorization.

121662150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811096 (or 811091 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 121662150 is about 11030.0566634991. The cubic root of 121662150 is about 495.5093216966.

The spelling of 121662150 in words is "one hundred twenty-one million, six hundred sixty-two thousand, one hundred fifty".