111141225215400 has 192 divisors, whose sum is σ = 355667798661120. Its totient is φ = 28680326035200.

The previous prime is 111141225215299. The next prime is 111141225215407. The reversal of 111141225215400 is 4512522141111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (111141225215407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 458982759 + ... + 459224841.

It is an arithmetic number, because the mean of its divisors is an integer number (1852436451360).

Almost surely, 2^{111141225215400} is an apocalyptic number.

111141225215400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111141225215400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177833899330560).

111141225215400 is an abundant number, since it is smaller than the sum of its proper divisors (244526573445720).

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

111141225215400 is a wasteful number, since it uses less digits than its factorization.

111141225215400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266816 (or 266807 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 30.

Adding to 111141225215400 its reverse (4512522141111), we get a palindrome (115653747356511).

The spelling of 111141225215400 in words is "one hundred eleven trillion, one hundred forty-one billion, two hundred twenty-five million, two hundred fifteen thousand, four hundred".