102211213879 has 2 divisors, whose sum is σ = 102211213880. Its totient is φ = 102211213878.

The previous prime is 102211213873. The next prime is 102211213997. The reversal of 102211213879 is 978312112201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102211213879 - 2⁵ = 102211213847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102211213873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51105606939 + 51105606940.

It is an arithmetic number, because the mean of its divisors is an integer number (51105606940).

Almost surely, 2^102211213879 is an apocalyptic number.

102211213879 is a deficient number, since it is larger than the sum of its proper divisors (1).

102211213879 is an equidigital number, since it uses as much as digits as its factorization.

102211213879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 37.

The spelling of 102211213879 in words is "one hundred two billion, two hundred eleven million, two hundred thirteen thousand, eight hundred seventy-nine".