220001222021000 has 512 divisors, whose sum is σ = 599480144640000. Its totient is φ = 74017912320000.

The previous prime is 220001222020799. The next prime is 220001222021107. The reversal of 220001222021000 is 120222100022.

It is a Harshad number since it is a multiple of its sum of digits (14).

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 127 ways as a sum of consecutive naturals, for example, 37846414094 + ... + 37846419906.

It is an arithmetic number, because the mean of its divisors is an integer number (1170859657500).

Almost surely, 2^{220001222021000} is an apocalyptic number.

220001222021000 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 220001222021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299740072320000).

220001222021000 is an abundant number, since it is smaller than the sum of its proper divisors (379478922619000).

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

220001222021000 is a wasteful number, since it uses less digits than its factorization.

220001222021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6410 (or 6396 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 220001222021000 its reverse (120222100022), we get a palindrome (220121444121022).

The spelling of 220001222021000 in words is "two hundred twenty trillion, one billion, two hundred twenty-two million, twenty-one thousand".