2202120211021 has 2 divisors, whose sum is σ = 2202120211022. Its totient is φ = 2202120211020.

The previous prime is 2202120210971. The next prime is 2202120211037. The reversal of 2202120211021 is 1201120212022.

It is a happy number.

It is an a-pointer prime, because the next prime (2202120211037) can be obtained adding 2202120211021 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1319939040996 + 882181170025 = 1148886^2 + 939245^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202120211021 - 2²⁹ = 2201583340109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2202120210986 and 2202120211004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2202120212021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101060105510 + 1101060105511.

It is an arithmetic number, because the mean of its divisors is an integer number (1101060105511).

Almost surely, 2^{2202120211021} is an apocalyptic number.

It is an amenable number.

2202120211021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2202120211021 is an equidigital number, since it uses as much as digits as its factorization.

2202120211021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2202120211021 its reverse (1201120212022), we get a palindrome (3403240423043).

The spelling of 2202120211021 in words is "two trillion, two hundred two billion, one hundred twenty million, two hundred eleven thousand, twenty-one".