20202002210122 has 4 divisors (see below), whose sum is σ = 30303003315186. Its totient is φ = 10101001105060.

The previous prime is 20202002210069. The next prime is 20202002210153. The reversal of 20202002210122 is 22101220020202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12573186965161 + 7628815244961 = 3545869^2 + 2762031^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20202002210096 and 20202002210105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050500552529 + ... + 5050500552532.

Almost surely, 2^{20202002210122} is an apocalyptic number.

20202002210122 is a deficient number, since it is larger than the sum of its proper divisors (10101001105064).

20202002210122 is a wasteful number, since it uses less digits than its factorization.

20202002210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10101001105063.

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

Adding to 20202002210122 its reverse (22101220020202), we get a palindrome (42303222230324).

The spelling of 20202002210122 in words is "twenty trillion, two hundred two billion, two million, two hundred ten thousand, one hundred twenty-two".