102220001010121 has 2 divisors, whose sum is σ = 102220001010122. Its totient is φ = 102220001010120.

The previous prime is 102220001010109. The next prime is 102220001010139. The reversal of 102220001010121 is 121010100022201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58330184256400 + 43889816753721 = 7637420^2 + 6624939^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102220001010121 is a prime.

It is not a weakly prime, because it can be changed into another prime (102220001013121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110000505060 + 51110000505061.

It is an arithmetic number, because the mean of its divisors is an integer number (51110000505061).

Almost surely, 2^{102220001010121} is an apocalyptic number.

It is an amenable number.

102220001010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

102220001010121 is an equidigital number, since it uses as much as digits as its factorization.

102220001010121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102220001010121 its reverse (121010100022201), we get a palindrome (223230101032322).

The spelling of 102220001010121 in words is "one hundred two trillion, two hundred twenty billion, one million, ten thousand, one hundred twenty-one".