221022212000 has 192 divisors, whose sum is σ = 572338690560. Its totient is φ = 83652480000.

The previous prime is 221022211987. The next prime is 221022212017. The reversal of 221022212000 is 212220122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94010825 + ... + 94013175.

It is an arithmetic number, because the mean of its divisors is an integer number (2980930680).

Almost surely, 2^221022212000 is an apocalyptic number.

221022212000 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 221022212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286169345280).

221022212000 is an abundant number, since it is smaller than the sum of its proper divisors (351316478560).

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

221022212000 is a wasteful number, since it uses less digits than its factorization.

221022212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632 (or 3614 counting only the distinct ones).

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

Adding to 221022212000 its reverse (212220122), we get a palindrome (221234432122).

It can be divided in two parts, 2210222 and 12000, that added together give a palindrome (2222222).

The spelling of 221022212000 in words is "two hundred twenty-one billion, twenty-two million, two hundred twelve thousand".