121162125 has 64 divisors (see below), whose sum is σ = 233206272. Its totient is φ = 54720000.

The previous prime is 121162123. The next prime is 121162127. The reversal of 121162125 is 521261121.

It is an interprime number because it is at equal distance from previous prime (121162123) and next prime (121162127).

It is not a de Polignac number, because 121162125 - 2¹ = 121162123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121162123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 264897 + ... + 265353.

It is an arithmetic number, because the mean of its divisors is an integer number (3643848).

Almost surely, 2^121162125 is an apocalyptic number.

121162125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121162125 is a deficient number, since it is larger than the sum of its proper divisors (112044147).

121162125 is a wasteful number, since it uses less digits than its factorization.

121162125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583 (or 573 counting only the distinct ones).

The product of its digits is 240, while the sum is 21.

The square root of 121162125 is about 11007.3668513410. The cubic root of 121162125 is about 494.8295505373.

It can be divided in two parts, 12116 and 2125, that added together give a palindrome (14241).

The spelling of 121162125 in words is "one hundred twenty-one million, one hundred sixty-two thousand, one hundred twenty-five".