121200112130 has 64 divisors (see below), whose sum is σ = 234954639360. Its totient is φ = 44869558464.

The previous prime is 121200112127. The next prime is 121200112133. The reversal of 121200112130 is 31211002121.

It is an interprime number because it is at equal distance from previous prime (121200112127) and next prime (121200112133).

It is not an unprimeable number, because it can be changed into a prime (121200112133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5015537 + ... + 5039643.

It is an arithmetic number, because the mean of its divisors is an integer number (3671166240).

Almost surely, 2^121200112130 is an apocalyptic number.

121200112130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121200112130 is a deficient number, since it is larger than the sum of its proper divisors (113754527230).

121200112130 is a wasteful number, since it uses less digits than its factorization.

121200112130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24743.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121200112130 its reverse (31211002121), we get a palindrome (152411114251).

The spelling of 121200112130 in words is "one hundred twenty-one billion, two hundred million, one hundred twelve thousand, one hundred thirty".