202221111021101 has 2 divisors, whose sum is σ = 202221111021102. Its totient is φ = 202221111021100.

The previous prime is 202221111021091. The next prime is 202221111021169. The reversal of 202221111021101 is 101120111122202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189699633376201 + 12521477644900 = 13773149^2 + 3538570^2 .

It is a cyclic number.

It is not a de Polignac number, because 202221111021101 - 2³⁴ = 202203931151917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202221111021101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202221111021191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101110555510550 + 101110555510551.

It is an arithmetic number, because the mean of its divisors is an integer number (101110555510551).

Almost surely, 2^{202221111021101} is an apocalyptic number.

It is an amenable number.

202221111021101 is a deficient number, since it is larger than the sum of its proper divisors (1).

202221111021101 is an equidigital number, since it uses as much as digits as its factorization.

202221111021101 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 17.

Adding to 202221111021101 its reverse (101120111122202), we get a palindrome (303341222143303).

The spelling of 202221111021101 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred eleven million, twenty-one thousand, one hundred one".