102212122211 has 4 divisors (see below), whose sum is σ = 102213695424. Its totient is φ = 102210549000.

The previous prime is 102212122183. The next prime is 102212122241. The reversal of 102212122211 is 112221212201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102212122211 - 2²² = 102207927907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102212122211.

It is not an unprimeable number, because it can be changed into a prime (102212122241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684755 + ... + 820556.

It is an arithmetic number, because the mean of its divisors is an integer number (25553423856).

Almost surely, 2^102212122211 is an apocalyptic number.

102212122211 is a deficient number, since it is larger than the sum of its proper divisors (1573213).

102212122211 is an equidigital number, since it uses as much as digits as its factorization.

102212122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573212.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102212122211 its reverse (112221212201), we get a palindrome (214433334412).

The spelling of 102212122211 in words is "one hundred two billion, two hundred twelve million, one hundred twenty-two thousand, two hundred eleven".