102222012222 has 72 divisors (see below), whose sum is σ = 252577693368. Its totient is φ = 29629538400.

The previous prime is 102222012203. The next prime is 102222012229. The reversal of 102222012222 is 222210222201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102222012195 and 102222012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222012229) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 383229 + ... + 592712.

It is an arithmetic number, because the mean of its divisors is an integer number (3508023519).

Almost surely, 2^102222012222 is an apocalyptic number.

102222012222 is an abundant number, since it is smaller than the sum of its proper divisors (150355681146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102222012222 is a wasteful number, since it uses less digits than its factorization.

102222012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976006 (or 975980 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 102222012222 its reverse (222210222201), we get a palindrome (324432234423).

The spelling of 102222012222 in words is "one hundred two billion, two hundred twenty-two million, twelve thousand, two hundred twenty-two".