222222201012 has 72 divisors (see below), whose sum is σ = 648331512192. Its totient is φ = 62863416000.

The previous prime is 222222200953. The next prime is 222222201017. The reversal of 222222201012 is 210102222222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222201017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4340064 + ... + 4390967.

It is an arithmetic number, because the mean of its divisors is an integer number (9004604336).

Almost surely, 2^222222201012 is an apocalyptic number.

It is an amenable number.

222222201012 is an abundant number, since it is smaller than the sum of its proper divisors (426109311180).

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

222222201012 is a wasteful number, since it uses less digits than its factorization.

222222201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8731149 (or 8731144 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222222201012 its reverse (210102222222), we get a palindrome (432324423234).

The spelling of 222222201012 in words is "two hundred twenty-two billion, two hundred twenty-two million, two hundred one thousand, twelve".