121120000011 has 48 divisors (see below), whose sum is σ = 194414665536. Its totient is φ = 72272099328.

The previous prime is 121119999989. The next prime is 121120000039. The reversal of 121120000011 is 110000021121.

It is a happy number.

It is not a de Polignac number, because 121120000011 - 2¹⁷ = 121119868939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 121119999948 and 121120000002.

It is not an unprimeable number, because it can be changed into a prime (121120000061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 509311 + ... + 708263.

It is an arithmetic number, because the mean of its divisors is an integer number (4050305532).

Almost surely, 2^121120000011 is an apocalyptic number.

121120000011 is a deficient number, since it is larger than the sum of its proper divisors (73294665525).

121120000011 is a wasteful number, since it uses less digits than its factorization.

121120000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199172 (or 199169 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 121120000011 its reverse (110000021121), we get a palindrome (231120021132).

The spelling of 121120000011 in words is "one hundred twenty-one billion, one hundred twenty million, eleven", and thus it is an aban number.