121100012 has 48 divisors (see below), whose sum is σ = 243855360. Its totient is φ = 52108800.

The previous prime is 121100011. The next prime is 121100017. The reversal of 121100012 is 210001121.

It is not an unprimeable number, because it can be changed into a prime (121100011) 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, 63164 + ... + 65052.

It is an arithmetic number, because the mean of its divisors is an integer number (5080320).

Almost surely, 2^121100012 is an apocalyptic number.

It is an amenable number.

121100012 is an abundant number, since it is smaller than the sum of its proper divisors (122755348).

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

121100012 is a wasteful number, since it uses less digits than its factorization.

121100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982 (or 1980 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 121100012 is about 11004.5450610191. The cubic root of 121100012 is about 494.7449790002.

Adding to 121100012 its reverse (210001121), we get a palindrome (331101133).

The spelling of 121100012 in words is "one hundred twenty-one million, one hundred thousand, twelve".