111202255420 has 24 divisors (see below), whose sum is σ = 233537024448. Its totient is φ = 44478561600.

The previous prime is 111202255369. The next prime is 111202255429. The reversal of 111202255420 is 24552202111.

It is a super-2 number, since 2×111202255420² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111202255429) 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, 272550 + ... + 544690.

It is an arithmetic number, because the mean of its divisors is an integer number (9730709352).

Almost surely, 2^111202255420 is an apocalyptic number.

111202255420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111202255420 is an abundant number, since it is smaller than the sum of its proper divisors (122334769028).

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

111202255420 is a wasteful number, since it uses less digits than its factorization.

111202255420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292581 (or 292579 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 111202255420 its reverse (24552202111), we get a palindrome (135754457531).

The spelling of 111202255420 in words is "one hundred eleven billion, two hundred two million, two hundred fifty-five thousand, four hundred twenty".