102220001211509 has 2 divisors, whose sum is σ = 102220001211510. Its totient is φ = 102220001211508.

The previous prime is 102220001211499. The next prime is 102220001211571. The reversal of 102220001211509 is 905112100022201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101678484780625 + 541516430884 = 10083575^2 + 735878^2 .

It is a cyclic number.

It is not a de Polignac number, because 102220001211509 - 2²⁸ = 102219732776053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102220001211109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110000605754 + 51110000605755.

It is an arithmetic number, because the mean of its divisors is an integer number (51110000605755).

Almost surely, 2^{102220001211509} is an apocalyptic number.

It is an amenable number.

102220001211509 is a deficient number, since it is larger than the sum of its proper divisors (1).

102220001211509 is an equidigital number, since it uses as much as digits as its factorization.

102220001211509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 26.

The spelling of 102220001211509 in words is "one hundred two trillion, two hundred twenty billion, one million, two hundred eleven thousand, five hundred nine".