222001001212 has 72 divisors (see below), whose sum is σ = 409847668272. Its totient is φ = 105205900800.

The previous prime is 222001001207. The next prime is 222001001221. The reversal of 222001001212 is 212100100222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 222001001192 and 222001001201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163115412 + ... + 163116772.

It is an arithmetic number, because the mean of its divisors is an integer number (5692328726).

Almost surely, 2^222001001212 is an apocalyptic number.

It is an amenable number.

222001001212 is a deficient number, since it is larger than the sum of its proper divisors (187846667060).

222001001212 is a wasteful number, since it uses less digits than its factorization.

222001001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059 (or 2034 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222001001212 its reverse (212100100222), we get a palindrome (434101101434).

The spelling of 222001001212 in words is "two hundred twenty-two billion, one million, one thousand, two hundred twelve".