10555001121 has 8 divisors (see below), whose sum is σ = 16083811264. Its totient is φ = 6031429200.

The previous prime is 10555001113. The next prime is 10555001167. The reversal of 10555001121 is 12110055501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10555001121 - 2³ = 10555001113 is a prime.

It is a super-2 number, since 2×10555001121² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 502619101 = 10555001121 / (1 + 0 + 5 + 5 + 5 + 0 + 0 + 1 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10555001101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251309530 + ... + 251309571.

It is an arithmetic number, because the mean of its divisors is an integer number (2010476408).

Almost surely, 2^10555001121 is an apocalyptic number.

It is an amenable number.

10555001121 is a deficient number, since it is larger than the sum of its proper divisors (5528810143).

10555001121 is an equidigital number, since it uses as much as digits as its factorization.

10555001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502619111.

The product of its (nonzero) digits is 250, while the sum is 21.

Adding to 10555001121 its reverse (12110055501), we get a palindrome (22665056622).

The spelling of 10555001121 in words is "ten billion, five hundred fifty-five million, one thousand, one hundred twenty-one".