20202011221202 has 4 divisors (see below), whose sum is σ = 30303016831806. Its totient is φ = 10101005610600.

The previous prime is 20202011221187. The next prime is 20202011221207. The reversal of 20202011221202 is 20212211020202.

It is a happy number.

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., 17313163706281 + 2888847514921 = 4160909^2 + 1699661^2 .

It is not an unprimeable number, because it can be changed into a prime (20202011221207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050502805299 + ... + 5050502805302.

Almost surely, 2^{20202011221202} is an apocalyptic number.

20202011221202 is a deficient number, since it is larger than the sum of its proper divisors (10101005610604).

20202011221202 is a wasteful number, since it uses less digits than its factorization.

20202011221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101005610603.

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

Adding to 20202011221202 its reverse (20212211020202), we get a palindrome (40414222241404).

The spelling of 20202011221202 in words is "twenty trillion, two hundred two billion, eleven million, two hundred twenty-one thousand, two hundred two".