10990121000 has 32 divisors (see below), whose sum is σ = 25716885480. Its totient is φ = 4396048000.

The previous prime is 10990120997. The next prime is 10990121017. The reversal of 10990121000 is 12109901.

It can be written as a sum of positive squares in 4 ways, for example, as 3867098596 + 7123022404 = 62186^2 + 84398^2 .

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, 5494061 + ... + 5496060.

Almost surely, 2^10990121000 is an apocalyptic number.

10990121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10990121000 is an abundant number, since it is smaller than the sum of its proper divisors (14726764480).

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

10990121000 is a wasteful number, since it uses less digits than its factorization.

10990121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10990142 (or 10990128 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 23.

The spelling of 10990121000 in words is "ten billion, nine hundred ninety million, one hundred twenty-one thousand".