2113220231100 has 432 divisors, whose sum is σ = 7432006466976. Its totient is φ = 497726208000.

The previous prime is 2113220231099. The next prime is 2113220231159. The reversal of 2113220231100 is 11320223112.

2113220231100 is a `hidden beast` number, since 2 + 11 + 322 + 0 + 231 + 100 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 277285290 + ... + 277292910.

Almost surely, 2^{2113220231100} is an apocalyptic number.

2113220231100 is a gapful number since it is divisible by the number (20) 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 2113220231100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3716003233488).

2113220231100 is an abundant number, since it is smaller than the sum of its proper divisors (5318786235876).

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

2113220231100 is a wasteful number, since it uses less digits than its factorization.

2113220231100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8446 (or 8436 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2113220231100 its reverse (11320223112), we get a palindrome (2124540454212).

The spelling of 2113220231100 in words is "two trillion, one hundred thirteen billion, two hundred twenty million, two hundred thirty-one thousand, one hundred".