10992121 has 16 divisors (see below), whose sum is σ = 13024000. Its totient is φ = 9271584.

The previous prime is 10992119. The next prime is 10992143. The reversal of 10992121 is 12129901.

It is not a de Polignac number, because 10992121 - 2¹ = 10992119 is a prime.

It is a Duffinian number.

10992121 is a modest number, since divided by 2121 gives 1099 as remainder.

It is not an unprimeable number, because it can be changed into a prime (10992101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24820 + ... + 25258.

It is an arithmetic number, because the mean of its divisors is an integer number (814000).

Almost surely, 2^10992121 is an apocalyptic number.

It is an amenable number.

10992121 is a deficient number, since it is larger than the sum of its proper divisors (2031879).

10992121 is an frugal number, since it uses more digits than its factorization.

10992121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 10992121 is about 3315.4367736393. The cubic root of 10992121 is about 222.3448971645.

The spelling of 10992121 in words is "ten million, nine hundred ninety-two thousand, one hundred twenty-one".