2122221100202 has 48 divisors (see below), whose sum is σ = 4056089349960. Its totient is φ = 826503939072.

The previous prime is 2122221100187. The next prime is 2122221100243. The reversal of 2122221100202 is 2020011222212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2077285155841 + 44935944361 = 1441279^2 + 211981^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 21914483 + ... + 22011110.

Almost surely, 2^{2122221100202} is an apocalyptic number.

2122221100202 is a deficient number, since it is larger than the sum of its proper divisors (1933868249758).

2122221100202 is a wasteful number, since it uses less digits than its factorization.

2122221100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43925655 (or 43925648 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2122221100202 its reverse (2020011222212), we get a palindrome (4142232322414).

The spelling of 2122221100202 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred thousand, two hundred two".