222120020001000 has 256 divisors, whose sum is σ = 756450215089920. Its totient is φ = 53816334720000.

The previous prime is 222120020000971. The next prime is 222120020001029. The reversal of 222120020001000 is 100020021222.

It is an interprime number because it is at equal distance from previous prime (222120020000971) and next prime (222120020001029).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55519942 + ... + 59386058.

It is an arithmetic number, because the mean of its divisors is an integer number (2954883652695).

Almost surely, 2^{222120020001000} is an apocalyptic number.

222120020001000 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 222120020001000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378225107544960).

222120020001000 is an abundant number, since it is smaller than the sum of its proper divisors (534330195088920).

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

222120020001000 is a wasteful number, since it uses less digits than its factorization.

222120020001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3867893 (or 3867879 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 222120020001000 its reverse (100020021222), we get a palindrome (222220040022222).

The spelling of 222120020001000 in words is "two hundred twenty-two trillion, one hundred twenty billion, twenty million, one thousand".