22021210020202 has 16 divisors (see below), whose sum is σ = 35057938680072. Its totient is φ = 10338307338240.

The previous prime is 22021210020193. The next prime is 22021210020209. The reversal of 22021210020202 is 20202001212022.

It can be written as a sum of positive squares in 4 ways, for example, as 11508642368721 + 10512567651481 = 3392439^2 + 3242309^2 .

It is not an unprimeable number, because it can be changed into a prime (22021210020209) 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, 769204983 + ... + 769233610.

Almost surely, 2^{22021210020202} is an apocalyptic number.

22021210020202 is a deficient number, since it is larger than the sum of its proper divisors (13036728659870).

22021210020202 is a wasteful number, since it uses less digits than its factorization.

22021210020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538439033.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22021210020202 its reverse (20202001212022), we get a palindrome (42223211232224).

The spelling of 22021210020202 in words is "twenty-two trillion, twenty-one billion, two hundred ten million, twenty thousand, two hundred two".