2001002202220 has 96 divisors (see below), whose sum is σ = 5055778667520. Its totient is φ = 649870490880.

The previous prime is 2001002202209. The next prime is 2001002202233. The reversal of 2001002202220 is 222022001002.

It is a self number, because there is not a number n which added to its sum of digits gives 2001002202220.

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, 24236610 + ... + 24319030.

It is an arithmetic number, because the mean of its divisors is an integer number (52664361120).

Almost surely, 2^{2001002202220} is an apocalyptic number.

2001002202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001002202220 is an abundant number, since it is smaller than the sum of its proper divisors (3054776465300).

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

2001002202220 is a wasteful number, since it uses less digits than its factorization.

2001002202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91583 (or 91581 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 2001002202220 its reverse (222022001002), we get a palindrome (2223024203222).

The spelling of 2001002202220 in words is "two trillion, one billion, two million, two hundred two thousand, two hundred twenty".