11855225107 has 12 divisors (see below), whose sum is σ = 13058915688. Its totient is φ = 10754348000.

The previous prime is 11855225101. The next prime is 11855225113. The reversal of 11855225107 is 70152255811.

It is an interprime number because it is at equal distance from previous prime (11855225101) and next prime (11855225113).

It is a de Polignac number, because none of the positive numbers 2^k-11855225107 is a prime.

It is a super-2 number, since 2×11855225107² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11855225101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48394 + ... + 161407.

It is an arithmetic number, because the mean of its divisors is an integer number (1088242974).

Almost surely, 2^11855225107 is an apocalyptic number.

11855225107 is a deficient number, since it is larger than the sum of its proper divisors (1203690581).

11855225107 is a wasteful number, since it uses less digits than its factorization.

11855225107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210290 (or 210279 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 37.

The spelling of 11855225107 in words is "eleven billion, eight hundred fifty-five million, two hundred twenty-five thousand, one hundred seven".