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22011012311 = 79479719809
BaseRepresentation
bin10100011111111101…
…010110010011010111
32002210222121021112012
4110133331112103113
5330034304343221
614040044214435
71406311342361
oct243775262327
962728537465
1022011012311
119375708372
12432353a41b
1320ca209552
1410cb409d31
1588c5a665b
hex51ff564d7

22011012311 has 16 divisors (see below), whose sum is σ = 22394880000. Its totient is φ = 21630088896.

The previous prime is 22011012253. The next prime is 22011012329. The reversal of 22011012311 is 11321011022.

It is a cyclic number.

It is not a de Polignac number, because 22011012311 - 222 = 22006818007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011012011) 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, 27207275 + ... + 27208083.

It is an arithmetic number, because the mean of its divisors is an integer number (1399680000).

Almost surely, 222011012311 is an apocalyptic number.

22011012311 is a deficient number, since it is larger than the sum of its proper divisors (383867689).

22011012311 is an equidigital number, since it uses as much as digits as its factorization.

22011012311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 22011012311 its reverse (11321011022), we get a palindrome (33332023333).

The spelling of 22011012311 in words is "twenty-two billion, eleven million, twelve thousand, three hundred eleven".

Divisors: 1 79 479 719 809 37841 56801 63911 344401 387511 581671 27207679 30613369 45952009 278620409 22011012311