121028668260 has 24 divisors (see below), whose sum is σ = 338880271296. Its totient is φ = 32274311520.

The previous prime is 121028668223. The next prime is 121028668273. The reversal of 121028668260 is 62866820121.

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, 1008572176 + ... + 1008572295.

It is an arithmetic number, because the mean of its divisors is an integer number (14120011304).

Almost surely, 2^121028668260 is an apocalyptic number.

121028668260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121028668260 is an abundant number, since it is smaller than the sum of its proper divisors (217851603036).

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

121028668260 is a wasteful number, since it uses less digits than its factorization.

121028668260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017144483 (or 2017144481 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 121028668260 in words is "one hundred twenty-one billion, twenty-eight million, six hundred sixty-eight thousand, two hundred sixty".