102222201212 has 6 divisors (see below), whose sum is σ = 178888852128. Its totient is φ = 51111100604.

The previous prime is 102222201187. The next prime is 102222201217. The reversal of 102222201212 is 212102222201.

It is a happy number.

It is a super-2 number, since 2×102222201212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222201217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12777775148 + ... + 12777775155.

It is an arithmetic number, because the mean of its divisors is an integer number (29814808688).

Almost surely, 2^102222201212 is an apocalyptic number.

It is an amenable number.

102222201212 is a deficient number, since it is larger than the sum of its proper divisors (76666650916).

102222201212 is a wasteful number, since it uses less digits than its factorization.

102222201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25555550307 (or 25555550305 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102222201212 its reverse (212102222201), we get a palindrome (314324423413).

The spelling of 102222201212 in words is "one hundred two billion, two hundred twenty-two million, two hundred one thousand, two hundred twelve".