Search a number
-
+
2211120111200 = 2552711133189069
BaseRepresentation
bin100000001011010001000…
…001110101111001100000
321211101021202120201021212
4200023101001311321200
5242211333222024300
64411435145405252
7315514421561240
oct40132101657140
97741252521255
102211120111200
11782804728130
122b8643799828
1313067a6435b0
1479039789b20
153c7b2819935
hex202d1075e60

2211120111200 has 576 divisors, whose sum is σ = 7481401159680. Its totient is φ = 615638016000.

The previous prime is 2211120111199. The next prime is 2211120111223. The reversal of 2211120111200 is 21110211122.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24780266 + ... + 24869334.

It is an arithmetic number, because the mean of its divisors is an integer number (12988543680).

Almost surely, 22211120111200 is an apocalyptic number.

2211120111200 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 2211120111200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3740700579840).

2211120111200 is an abundant number, since it is smaller than the sum of its proper divisors (5270281048480).

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

2211120111200 is a wasteful number, since it uses less digits than its factorization.

2211120111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89151 (or 89138 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2211120111200 its reverse (21110211122), we get a palindrome (2232230322322).

The spelling of 2211120111200 in words is "two trillion, two hundred eleven billion, one hundred twenty million, one hundred eleven thousand, two hundred".