200122111000 has 64 divisors (see below), whose sum is σ = 535183721280. Its totient is φ = 68613292800.

The previous prime is 200122110989. The next prime is 200122111001. The reversal of 200122111000 is 111221002.

It is a super-2 number, since 2×200122111000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200122111001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14287437 + ... + 14301436.

It is an arithmetic number, because the mean of its divisors is an integer number (8362245645).

Almost surely, 2^200122111000 is an apocalyptic number.

200122111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200122111000 is an abundant number, since it is smaller than the sum of its proper divisors (335061610280).

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

200122111000 is a wasteful number, since it uses less digits than its factorization.

200122111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28588901 (or 28588887 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 200122111000 its reverse (111221002), we get a palindrome (200233332002).

The spelling of 200122111000 in words is "two hundred billion, one hundred twenty-two million, one hundred eleven thousand".