222331110212 has 6 divisors (see below), whose sum is σ = 389079442878. Its totient is φ = 111165555104.

The previous prime is 222331110187. The next prime is 222331110233. The reversal of 222331110212 is 212011133222.

It can be written as a sum of positive squares in only one way, i.e., 211495132996 + 10835977216 = 459886^2 + 104096^2 .

It is a super-2 number, since 2×222331110212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27791388773 + ... + 27791388780.

It is an arithmetic number, because the mean of its divisors is an integer number (64846573813).

Almost surely, 2^222331110212 is an apocalyptic number.

It is an amenable number.

222331110212 is a deficient number, since it is larger than the sum of its proper divisors (166748332666).

222331110212 is a wasteful number, since it uses less digits than its factorization.

222331110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55582777557 (or 55582777555 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 222331110212 its reverse (212011133222), we get a palindrome (434342243434).

The spelling of 222331110212 in words is "two hundred twenty-two billion, three hundred thirty-one million, one hundred ten thousand, two hundred twelve".