22111131010000 has 50 divisors (see below), whose sum is σ = 53533259312522. Its totient is φ = 8844452400000.

The previous prime is 22111131009997. The next prime is 22111131010037. The reversal of 22111131010000 is 1013111122.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 15445088640576 + 6666042369424 = 3930024^2 + 2581868^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a super-2 number, since 2×22111131010000² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1105546551 + ... + 1105566550.

Almost surely, 2^{22111131010000} is an apocalyptic number.

22111131010000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111131010000 is an abundant number, since it is smaller than the sum of its proper divisors (31422128302522).

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

22111131010000 is an equidigital number, since it uses as much as digits as its factorization.

22111131010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211113129 (or 2211113108 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 22111131010000 its reverse (1013111122), we get a palindrome (22112144121122).

The spelling of 22111131010000 in words is "twenty-two trillion, one hundred eleven billion, one hundred thirty-one million, ten thousand".