22210111001000 has 128 divisors (see below), whose sum is σ = 56598353229600. Its totient is φ = 8108513740800.

The previous prime is 22210111000993. The next prime is 22210111001021. The reversal of 22210111001000 is 10011101222.

It can be written as a sum of positive squares in 16 ways, for example, as 7992731888164 + 14217379112836 = 2827142^2 + 3770594^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8441147 + ... + 10755146.

Almost surely, 2^{22210111001000} is an apocalyptic number.

22210111001000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22210111001000 is an abundant number, since it is smaller than the sum of its proper divisors (34388242228600).

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

22210111001000 is a wasteful number, since it uses less digits than its factorization.

22210111001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19196416 (or 19196402 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22210111001000 its reverse (10011101222), we get a palindrome (22220122102222).

The spelling of 22210111001000 in words is "twenty-two trillion, two hundred ten billion, one hundred eleven million, one thousand".