11227870337172 has 24 divisors (see below), whose sum is σ = 26226028733856. Its totient is φ = 3738671358048.

The previous prime is 11227870337161. The next prime is 11227870337179. The reversal of 11227870337172 is 27173307872211.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11227870337179) 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, 493999123 + ... + 494021850.

It is an arithmetic number, because the mean of its divisors is an integer number (1092751197244).

Almost surely, 2^{11227870337172} is an apocalyptic number.

11227870337172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11227870337172 is an abundant number, since it is smaller than the sum of its proper divisors (14998158396684).

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

11227870337172 is a wasteful number, since it uses less digits than its factorization.

11227870337172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988021927 (or 988021925 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 51.

The spelling of 11227870337172 in words is "eleven trillion, two hundred twenty-seven billion, eight hundred seventy million, three hundred thirty-seven thousand, one hundred seventy-two".