102212212222 has 4 divisors (see below), whose sum is σ = 153318318336. Its totient is φ = 51106106110.

The previous prime is 102212212199. The next prime is 102212212237. The reversal of 102212212222 is 222212212201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222212212201 = 7 ⋅31744601743.

It is a self number, because there is not a number n which added to its sum of digits gives 102212212222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25553053054 + ... + 25553053057.

It is an arithmetic number, because the mean of its divisors is an integer number (38329579584).

Almost surely, 2^102212212222 is an apocalyptic number.

102212212222 is a deficient number, since it is larger than the sum of its proper divisors (51106106114).

102212212222 is an equidigital number, since it uses as much as digits as its factorization.

102212212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51106106113.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 102212212222 its reverse (222212212201), we get a palindrome (324424424423).

The spelling of 102212212222 in words is "one hundred two billion, two hundred twelve million, two hundred twelve thousand, two hundred twenty-two".