121101100012 has 24 divisors (see below), whose sum is σ = 213037957440. Its totient is φ = 60233214720.

The previous prime is 121101099997. The next prime is 121101100027. The reversal of 121101100012 is 210001101121.

It is an interprime number because it is at equal distance from previous prime (121101099997) and next prime (121101100027).

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, 7770564 + ... + 7786132.

It is an arithmetic number, because the mean of its divisors is an integer number (8876581560).

Almost surely, 2^121101100012 is an apocalyptic number.

It is an amenable number.

121101100012 is a deficient number, since it is larger than the sum of its proper divisors (91936857428).

121101100012 is a wasteful number, since it uses less digits than its factorization.

121101100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25641 (or 25639 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121101100012 its reverse (210001101121), we get a palindrome (331102201133).

The spelling of 121101100012 in words is "one hundred twenty-one billion, one hundred one million, one hundred thousand, twelve".