222002143400 has 96 divisors (see below), whose sum is σ = 524936640000. Its totient is φ = 87291820800.

The previous prime is 222002143397. The next prime is 222002143439. The reversal of 222002143400 is 4341200222.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 24383249 + ... + 24392351.

It is an arithmetic number, because the mean of its divisors is an integer number (5468090000).

Almost surely, 2^222002143400 is an apocalyptic number.

222002143400 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 222002143400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262468320000).

222002143400 is an abundant number, since it is smaller than the sum of its proper divisors (302934496600).

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

222002143400 is a wasteful number, since it uses less digits than its factorization.

222002143400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11179 (or 11170 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 222002143400 its reverse (4341200222), we get a palindrome (226343343622).

The spelling of 222002143400 in words is "two hundred twenty-two billion, two million, one hundred forty-three thousand, four hundred".