2002222031100 has 144 divisors (see below), whose sum is σ = 6101492812800. Its totient is φ = 505534417920.

The previous prime is 2002222031099. The next prime is 2002222031179. The reversal of 2002222031100 is 11302222002.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2002222031100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9926452 + ... + 10126148.

Almost surely, 2^{2002222031100} is an apocalyptic number.

2002222031100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2002222031100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3050746406400).

2002222031100 is an abundant number, since it is smaller than the sum of its proper divisors (4099270781700).

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

2002222031100 is a wasteful number, since it uses less digits than its factorization.

2002222031100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201492 (or 201485 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 2002222031100 its reverse (11302222002), we get a palindrome (2013524253102).

It can be divided in two parts, 200222 and 2031100, that added together give a palindrome (2231322).

The spelling of 2002222031100 in words is "two trillion, two billion, two hundred twenty-two million, thirty-one thousand, one hundred".