222111100212 has 48 divisors (see below), whose sum is σ = 549077074560. Its totient is φ = 69639754752.

The previous prime is 222111100201. The next prime is 222111100223. The reversal of 222111100212 is 212001111222.

It is an interprime number because it is at equal distance from previous prime (222111100201) and next prime (222111100223).

It is a junction number, because it is equal to n+sod(n) for n = 222111100191 and 222111100200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9489 + ... + 666567.

It is an arithmetic number, because the mean of its divisors is an integer number (11439105720).

Almost surely, 2^222111100212 is an apocalyptic number.

It is an amenable number.

222111100212 is an abundant number, since it is smaller than the sum of its proper divisors (326965974348).

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

222111100212 is a wasteful number, since it uses less digits than its factorization.

222111100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658760 (or 658758 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 222111100212 its reverse (212001111222), we get a palindrome (434112211434).

The spelling of 222111100212 in words is "two hundred twenty-two billion, one hundred eleven million, one hundred thousand, two hundred twelve".