102220102211989 has 2 divisors, whose sum is σ = 102220102211990. Its totient is φ = 102220102211988.

The previous prime is 102220102211923. The next prime is 102220102212013. The reversal of 102220102211989 is 989112201022201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68880737511364 + 33339364700625 = 8299442^2 + 5774025^2 .

It is a cyclic number.

It is not a de Polignac number, because 102220102211989 - 2¹³ = 102220102203797 is a prime.

It is a super-2 number, since 2×102220102211989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102220102211389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110051105994 + 51110051105995.

It is an arithmetic number, because the mean of its divisors is an integer number (51110051105995).

Almost surely, 2^{102220102211989} is an apocalyptic number.

It is an amenable number.

102220102211989 is a deficient number, since it is larger than the sum of its proper divisors (1).

102220102211989 is an equidigital number, since it uses as much as digits as its factorization.

102220102211989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 40.

The spelling of 102220102211989 in words is "one hundred two trillion, two hundred twenty billion, one hundred two million, two hundred eleven thousand, nine hundred eighty-nine".