121100152 has 16 divisors (see below), whose sum is σ = 236935440. Its totient is φ = 57917376.

The previous prime is 121100131. The next prime is 121100159. The reversal of 121100152 is 251001121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328893 + ... + 329260.

It is an arithmetic number, because the mean of its divisors is an integer number (14808465).

Almost surely, 2^121100152 is an apocalyptic number.

It is an amenable number.

121100152 is a deficient number, since it is larger than the sum of its proper divisors (115835288).

121100152 is a wasteful number, since it uses less digits than its factorization.

121100152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658182 (or 658178 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 121100152 is about 11004.5514220253. The cubic root of 121100152 is about 494.7451696533.

Adding to 121100152 its reverse (251001121), we get a palindrome (372101273).

The spelling of 121100152 in words is "one hundred twenty-one million, one hundred thousand, one hundred fifty-two".