10611322821 has 48 divisors (see below), whose sum is σ = 17091330048. Its totient is φ = 6290071200.

The previous prime is 10611322793. The next prime is 10611322853. The reversal of 10611322821 is 12822311601.

10611322821 is a `hidden beast` number, since 1 + 0 + 611 + 3 + 2 + 28 + 21 = 666.

It is not a de Polignac number, because 10611322821 - 2⁵ = 10611322789 is a prime.

It is a super-2 number, since 2×10611322821² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10611322321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 886740 + ... + 898626.

It is an arithmetic number, because the mean of its divisors is an integer number (356069376).

Almost surely, 2^10611322821 is an apocalyptic number.

10611322821 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10611322821 is a deficient number, since it is larger than the sum of its proper divisors (6480007227).

10611322821 is a wasteful number, since it uses less digits than its factorization.

10611322821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12102 (or 12099 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 10611322821 in words is "ten billion, six hundred eleven million, three hundred twenty-two thousand, eight hundred twenty-one".