121011133250 has 32 divisors (see below), whose sum is σ = 258894679680. Its totient is φ = 41489530800.

The previous prime is 121011133249. The next prime is 121011133267. The reversal of 121011133250 is 52331110121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34572860 + ... + 34576359.

It is an arithmetic number, because the mean of its divisors is an integer number (8090458740).

Almost surely, 2^121011133250 is an apocalyptic number.

121011133250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121011133250 is an abundant number, since it is smaller than the sum of its proper divisors (137883546430).

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

121011133250 is an equidigital number, since it uses as much as digits as its factorization.

121011133250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69149243 (or 69149233 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 121011133250 its reverse (52331110121), we get a palindrome (173342243371).

The spelling of 121011133250 in words is "one hundred twenty-one billion, eleven million, one hundred thirty-three thousand, two hundred fifty".