222310221000 has 256 divisors, whose sum is σ = 804531087360. Its totient is φ = 50055033600.

The previous prime is 222310220999. The next prime is 222310221017. The reversal of 222310221000 is 122013222.

It is a happy number.

It is a super-2 number, since 2×222310221000² (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1327999 + ... + 1486001.

It is an arithmetic number, because the mean of its divisors is an integer number (3142699560).

Almost surely, 2^222310221000 is an apocalyptic number.

222310221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222310221000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402265543680).

222310221000 is an abundant number, since it is smaller than the sum of its proper divisors (582220866360).

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

222310221000 is a wasteful number, since it uses less digits than its factorization.

222310221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158101 (or 158087 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 222310221000 its reverse (122013222), we get a palindrome (222432234222).

The spelling of 222310221000 in words is "two hundred twenty-two billion, three hundred ten million, two hundred twenty-one thousand".