2202021000 has 96 divisors (see below), whose sum is σ = 7442861400. Its totient is φ = 587203200.

The previous prime is 2202020993. The next prime is 2202021037. The reversal of 2202021000 is 1202022.

It can be written as a sum of positive squares in 4 ways, for example, as 876041604 + 1325979396 = 29598^2 + 36414^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113335 + ... + 131334.

Almost surely, 2^2202021000 is an apocalyptic number.

2202021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2202021000 is an abundant number, since it is smaller than the sum of its proper divisors (5240840400).

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

2202021000 is a wasteful number, since it uses less digits than its factorization.

2202021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244696 (or 244679 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 2202021000 is about 46925.6965851334. The cubic root of 2202021000 is about 1300.9895818283.

Adding to 2202021000 its reverse (1202022), we get a palindrome (2203223022).

The spelling of 2202021000 in words is "two billion, two hundred two million, twenty-one thousand".