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22322222231 = 212925214159
BaseRepresentation
bin10100110010100000…
…100001010010010111
32010121200012101021112
4110302200201102113
5331203442102411
614131002405235
71420110521051
oct246240412227
963550171245
1022322222231
119515348a51
1243ab80081b
13214983082a
14111a89a8d1
158a9a7bb8b
hex532821497

22322222231 has 8 divisors (see below), whose sum is σ = 22346937600. Its totient is φ = 22297524480.

The previous prime is 22322222213. The next prime is 22322222243. The reversal of 22322222231 is 13222222322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22322222231 is a prime.

It is a super-3 number, since 3×223222222313 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22322222197 and 22322222206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22322222431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5365130 + ... + 5369288.

It is an arithmetic number, because the mean of its divisors is an integer number (2793367200).

Almost surely, 222322222231 is an apocalyptic number.

22322222231 is a deficient number, since it is larger than the sum of its proper divisors (24715369).

22322222231 is a wasteful number, since it uses less digits than its factorization.

22322222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8809.

The product of its digits is 2304, while the sum is 23.

Adding to 22322222231 its reverse (13222222322), we get a palindrome (35544444553).

Subtracting from 22322222231 its reverse (13222222322), we obtain a palindrome (9099999909).

The spelling of 22322222231 in words is "twenty-two billion, three hundred twenty-two million, two hundred twenty-two thousand, two hundred thirty-one".

Divisors: 1 2129 2521 4159 5367209 8854511 10484839 22322222231