2202020011021 has 2 divisors, whose sum is σ = 2202020011022. Its totient is φ = 2202020011020.

The previous prime is 2202020011001. The next prime is 2202020011049. The reversal of 2202020011021 is 1201100202022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2201439875625 + 580135396 = 1483725^2 + 24086^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202020011021 - 2²¹ = 2202017913869 is a prime.

It is a super-2 number, since 2×2202020011021² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2202020010992 and 2202020011010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2202020011001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101010005510 + 1101010005511.

It is an arithmetic number, because the mean of its divisors is an integer number (1101010005511).

Almost surely, 2^{2202020011021} is an apocalyptic number.

It is an amenable number.

2202020011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2202020011021 is an equidigital number, since it uses as much as digits as its factorization.

2202020011021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2202020011021 its reverse (1201100202022), we get a palindrome (3403120213043).

The spelling of 2202020011021 in words is "two trillion, two hundred two billion, twenty million, eleven thousand, twenty-one".