102122001211209 has 128 divisors (see below), whose sum is σ = 173062294364160. Its totient is φ = 52223104733184.

The previous prime is 102122001211207. The next prime is 102122001211231. The reversal of 102122001211209 is 902112100221201.

It is not a de Polignac number, because 102122001211209 - 2¹ = 102122001211207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102122001211201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 287071519 + ... + 287427035.

It is an arithmetic number, because the mean of its divisors is an integer number (1352049174720).

Almost surely, 2^{102122001211209} is an apocalyptic number.

102122001211209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

102122001211209 is a deficient number, since it is larger than the sum of its proper divisors (70940293152951).

102122001211209 is a wasteful number, since it uses less digits than its factorization.

102122001211209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355959.

The product of its (nonzero) digits is 288, while the sum is 24.

The spelling of 102122001211209 in words is "one hundred two trillion, one hundred twenty-two billion, one million, two hundred eleven thousand, two hundred nine".