222221211000 has 64 divisors (see below), whose sum is σ = 693330187680. Its totient is φ = 59258988800.

The previous prime is 222221210993. The next prime is 222221211001. The reversal of 222221211000 is 112122222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222221211001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37033869 + ... + 37039868.

Almost surely, 2^222221211000 is an apocalyptic number.

222221211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222221211000 is an abundant number, since it is smaller than the sum of its proper divisors (471108976680).

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

222221211000 is a wasteful number, since it uses less digits than its factorization.

222221211000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74073761 (or 74073747 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222221211000 its reverse (112122222), we get a palindrome (222333333222).

The spelling of 222221211000 in words is "two hundred twenty-two billion, two hundred twenty-one million, two hundred eleven thousand".