202121101120097 has 2 divisors, whose sum is σ = 202121101120098. Its totient is φ = 202121101120096.

The previous prime is 202121101120087. The next prime is 202121101120111. The reversal of 202121101120097 is 790021101121202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193991440342561 + 8129660777536 = 13928081^2 + 2851256^2 .

It is a cyclic number.

It is not a de Polignac number, because 202121101120097 - 2¹⁸ = 202121100857953 is a prime.

It is not a weakly prime, because it can be changed into another prime (202121101120087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101060550560048 + 101060550560049.

It is an arithmetic number, because the mean of its divisors is an integer number (101060550560049).

Almost surely, 2^{202121101120097} is an apocalyptic number.

It is an amenable number.

202121101120097 is a deficient number, since it is larger than the sum of its proper divisors (1).

202121101120097 is an equidigital number, since it uses as much as digits as its factorization.

202121101120097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

Adding to 202121101120097 its reverse (790021101121202), we get a palindrome (992142202241299).

The spelling of 202121101120097 in words is "two hundred two trillion, one hundred twenty-one billion, one hundred one million, one hundred twenty thousand, ninety-seven".