202210202120081 has 2 divisors, whose sum is σ = 202210202120082. Its totient is φ = 202210202120080.

The previous prime is 202210202120011. The next prime is 202210202120099. The reversal of 202210202120081 is 180021202012202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153163767124225 + 49046434995856 = 12375935^2 + 7003316^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202210202120081 is a prime.

It is a super-3 number, since 3×202210202120081³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (202210202120011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101105101060040 + 101105101060041.

It is an arithmetic number, because the mean of its divisors is an integer number (101105101060041).

Almost surely, 2^{202210202120081} is an apocalyptic number.

It is an amenable number.

202210202120081 is a deficient number, since it is larger than the sum of its proper divisors (1).

202210202120081 is an equidigital number, since it uses as much as digits as its factorization.

202210202120081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 202210202120081 its reverse (180021202012202), we get a palindrome (382231404132283).

The spelling of 202210202120081 in words is "two hundred two trillion, two hundred ten billion, two hundred two million, one hundred twenty thousand, eighty-one".