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2220111221000 = 2353193110735227
BaseRepresentation
bin100000010011101000111…
…100001101000100001000
321212020111100221102020112
4200103220330031010020
5242333241433033000
64415523252213452
7316253266004321
oct40235074150410
97766440842215
102220111221000
117865a89a6a92
122ba33290a288
131314813001ca
147964d929448
153cb3bd3c235
hex204e8f0d108

2220111221000 has 256 divisors, whose sum is σ = 5697804902400. Its totient is φ = 806534496000.

The previous prime is 2220111220939. The next prime is 2220111221099. The reversal of 2220111221000 is 1221110222.

It is a super-2 number, since 2×22201112210002 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63005387 + ... + 63040613.

It is an arithmetic number, because the mean of its divisors is an integer number (22257050400).

Almost surely, 22220111221000 is an apocalyptic number.

2220111221000 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 2220111221000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2848902451200).

2220111221000 is an abundant number, since it is smaller than the sum of its proper divisors (3477693681400).

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

2220111221000 is a wasteful number, since it uses less digits than its factorization.

2220111221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35405 (or 35391 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2220111221000 its reverse (1221110222), we get a palindrome (2221332331222).

The spelling of 2220111221000 in words is "two trillion, two hundred twenty billion, one hundred eleven million, two hundred twenty-one thousand".