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220112200021 = 7367679312613
BaseRepresentation
bin1100110011111110110…
…1011010000101010101
3210001010222221022020111
43030333231122011111
512101242210400041
6245041304203021
721621404554450
oct3147755320525
9701128838214
10220112200021
118539266480a
12367ab169471
13179ab01c64c
14a921252497
155ad3ea4981
hex333fb5a155

220112200021 has 16 divisors (see below), whose sum is σ = 252299375104. Its totient is φ = 188110905984.

The previous prime is 220112200003. The next prime is 220112200057. The reversal of 220112200021 is 120002211022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 220112200021 - 217 = 220112068949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220112199974 and 220112200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220112200421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17444911 + ... + 17457523.

It is an arithmetic number, because the mean of its divisors is an integer number (15768710944).

Almost surely, 2220112200021 is an apocalyptic number.

It is an amenable number.

220112200021 is a deficient number, since it is larger than the sum of its proper divisors (32187175083).

220112200021 is a wasteful number, since it uses less digits than its factorization.

220112200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19780.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220112200021 its reverse (120002211022), we get a palindrome (340114411043).

The spelling of 220112200021 in words is "two hundred twenty billion, one hundred twelve million, two hundred thousand, twenty-one".

Divisors: 1 7 367 2569 6793 12613 47551 88291 2493031 4628971 17451217 32402797 85680109 599760763 31444600003 220112200021