12121011150 has 48 divisors (see below), whose sum is σ = 30068313600. Its totient is φ = 3231387360.

The previous prime is 12121011143. The next prime is 12121011167. The reversal of 12121011150 is 5111012121.

It is a super-2 number, since 2×12121011150² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 687141 + ... + 704559.

It is an arithmetic number, because the mean of its divisors is an integer number (626423200).

Almost surely, 2^12121011150 is an apocalyptic number.

12121011150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121011150 is an abundant number, since it is smaller than the sum of its proper divisors (17947302450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12121011150 is a wasteful number, since it uses less digits than its factorization.

12121011150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22073 (or 22068 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 15.

Adding to 12121011150 its reverse (5111012121), we get a palindrome (17232023271).

The spelling of 12121011150 in words is "twelve billion, one hundred twenty-one million, eleven thousand, one hundred fifty".