102222012212 has 24 divisors (see below), whose sum is σ = 181961869320. Its totient is φ = 50234204160.

The previous prime is 102222012203. The next prime is 102222012229. The reversal of 102222012212 is 212210222201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 40094455696 + 62127556516 = 200236^2 + 249254^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154964 + ... + 477972.

It is an arithmetic number, because the mean of its divisors is an integer number (7581744555).

Almost surely, 2^102222012212 is an apocalyptic number.

It is an amenable number.

102222012212 is a deficient number, since it is larger than the sum of its proper divisors (79739857108).

102222012212 is a wasteful number, since it uses less digits than its factorization.

102222012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324371 (or 324369 counting only the distinct ones).

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

Adding to 102222012212 its reverse (212210222201), we get a palindrome (314432234413).

The spelling of 102222012212 in words is "one hundred two billion, two hundred twenty-two million, twelve thousand, two hundred twelve".