2202220021000 has 32 divisors (see below), whose sum is σ = 5153194851480. Its totient is φ = 880888008000.

The previous prime is 2202220020997. The next prime is 2202220021007. The reversal of 2202220021000 is 1200222022.

It can be written as a sum of positive squares in 4 ways, for example, as 80250957796 + 2121969063204 = 283286^2 + 1456698^2 .

It is not an unprimeable number, because it can be changed into a prime (2202220021007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1101109011 + ... + 1101111010.

Almost surely, 2^{2202220021000} is an apocalyptic number.

2202220021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2202220021000 is an abundant number, since it is smaller than the sum of its proper divisors (2950974830480).

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

2202220021000 is a wasteful number, since it uses less digits than its factorization.

2202220021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202220042 (or 2202220028 counting only the distinct ones).

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

Adding to 2202220021000 its reverse (1200222022), we get a palindrome (2203420243022).

The spelling of 2202220021000 in words is "two trillion, two hundred two billion, two hundred twenty million, twenty-one thousand".