1000202022 has 24 divisors (see below), whose sum is σ = 2182700520. Its totient is φ = 331001280.

The previous prime is 1000202003. The next prime is 1000202029. The reversal of 1000202022 is 2202020001.

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

It is a junction number, because it is equal to n+sod(n) for n = 1000201995 and 1000202013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000202029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197379 + ... + 202382.

It is an arithmetic number, because the mean of its divisors is an integer number (90945855).

Almost surely, 2^1000202022 is an apocalyptic number.

1000202022 is an abundant number, since it is smaller than the sum of its proper divisors (1182498498).

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

1000202022 is a wasteful number, since it uses less digits than its factorization.

1000202022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399908 (or 399905 counting only the distinct ones).

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

The square root of 1000202022 is about 31625.9706886603. The cubic root of 1000202022 is about 1000.0673361324.

Adding to 1000202022 its reverse (2202020001), we get a palindrome (3202222023).

The spelling of 1000202022 in words is "one billion, two hundred two thousand, twenty-two".