121121289107 has 12 divisors (see below), whose sum is σ = 151734362976. Its totient is φ = 95832228240.

The previous prime is 121121289101. The next prime is 121121289109. The reversal of 121121289107 is 701982121121.

It is not a de Polignac number, because 121121289107 - 2⁶ = 121121289043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121121289101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95071019 + ... + 95072292.

It is an arithmetic number, because the mean of its divisors is an integer number (12644530248).

Almost surely, 2^121121289107 is an apocalyptic number.

121121289107 is a deficient number, since it is larger than the sum of its proper divisors (30613073869).

121121289107 is a wasteful number, since it uses less digits than its factorization.

121121289107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190143338 (or 190143331 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 35.

The spelling of 121121289107 in words is "one hundred twenty-one billion, one hundred twenty-one million, two hundred eighty-nine thousand, one hundred seven".