121100273012 has 24 divisors (see below), whose sum is σ = 212935477440. Its totient is φ = 60262202880.

The previous prime is 121100273009. The next prime is 121100273027. The reversal of 121100273012 is 210372001121.

It is a super-2 number, since 2×121100273012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684689 + ... + 843207.

It is an arithmetic number, because the mean of its divisors is an integer number (8872311560).

Almost surely, 2^121100273012 is an apocalyptic number.

It is an amenable number.

121100273012 is a deficient number, since it is larger than the sum of its proper divisors (91835204428).

121100273012 is a wasteful number, since it uses less digits than its factorization.

121100273012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159431 (or 159429 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 121100273012 its reverse (210372001121), we get a palindrome (331472274133).

The spelling of 121100273012 in words is "one hundred twenty-one billion, one hundred million, two hundred seventy-three thousand, twelve".