111152223540 has 96 divisors (see below), whose sum is σ = 345994306560. Its totient is φ = 29624531328.

The previous prime is 111152223529. The next prime is 111152223541. The reversal of 111152223540 is 45322251111.

It is a happy number.

111152223540 is a `hidden beast` number, since 1 + 1 + 115 + 2 + 2 + 2 + 3 + 540 = 666.

It is a super-2 number, since 2×111152223540² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111152223541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 958749 + ... + 1068411.

It is an arithmetic number, because the mean of its divisors is an integer number (3604107360).

Almost surely, 2^111152223540 is an apocalyptic number.

111152223540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111152223540 is an abundant number, since it is smaller than the sum of its proper divisors (234842083020).

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

111152223540 is a wasteful number, since it uses less digits than its factorization.

111152223540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111558 (or 111550 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 111152223540 its reverse (45322251111), we get a palindrome (156474474651).

The spelling of 111152223540 in words is "one hundred eleven billion, one hundred fifty-two million, two hundred twenty-three thousand, five hundred forty".