222221121122000 has 1280 divisors, whose sum is σ = 751337767305216. Its totient is φ = 61323816960000.

The previous prime is 222221121121991. The next prime is 222221121122009. The reversal of 222221121122000 is 221121122222.

It is an interprime number because it is at equal distance from previous prime (222221121121991) and next prime (222221121122009).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222221121122009) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 7012990157 + ... + 7013021843.

Almost surely, 2^{222221121122000} is an apocalyptic number.

222221121122000 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 222221121122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375668883652608).

222221121122000 is an abundant number, since it is smaller than the sum of its proper divisors (529116646183216).

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

222221121122000 is a wasteful number, since it uses less digits than its factorization.

222221121122000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31885 (or 31869 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222221121122000 its reverse (221121122222), we get a palindrome (222442242244222).

The spelling of 222221121122000 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-two thousand".