23111021220000 has 240 divisors, whose sum is σ = 86638597924032. Its totient is φ = 5282519040000.

The previous prime is 23111021219987. The next prime is 23111021220073. The reversal of 23111021220000 is 2212011132.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27093121 + ... + 27933120.

Almost surely, 2^{23111021220000} is an apocalyptic number.

23111021220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23111021220000 is an abundant number, since it is smaller than the sum of its proper divisors (63527576704032).

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

23111021220000 is an equidigital number, since it uses as much as digits as its factorization.

23111021220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55026281 (or 55026258 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 23111021220000 its reverse (2212011132), we get a palindrome (23113233231132).

The spelling of 23111021220000 in words is "twenty-three trillion, one hundred eleven billion, twenty-one million, two hundred twenty thousand".