2201122001000 has 128 divisors (see below), whose sum is σ = 5664846620160. Its totient is φ = 795429792000.

The previous prime is 2201122000997. The next prime is 2201122001003. The reversal of 2201122001000 is 1002211022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2201122000997) and next prime (2201122001003).

It is not an unprimeable number, because it can be changed into a prime (2201122001003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1190246 + ... + 2412245.

It is an arithmetic number, because the mean of its divisors is an integer number (44256614220).

Almost surely, 2^{2201122001000} is an apocalyptic number.

2201122001000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201122001000 is an abundant number, since it is smaller than the sum of its proper divisors (3463724619160).

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

2201122001000 is a wasteful number, since it uses less digits than its factorization.

2201122001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3602572 (or 3602558 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2201122001000 its reverse (1002211022), we get a palindrome (2202124212022).

The spelling of 2201122001000 in words is "two trillion, two hundred one billion, one hundred twenty-two million, one thousand".