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22132222031 = 37598168163
BaseRepresentation
bin10100100111001011…
…101110100001001111
32010010102200101000002
4110213023232201033
5330311322101111
614100054154515
71412312532443
oct244713564117
963112611002
1022132222031
119428075a97
124358052a3b
132119367c8a
1410dd55c823
1589804a63b
hex5272ee84f

22132222031 has 4 divisors (see below), whose sum is σ = 22730390232. Its totient is φ = 21534053832.

The previous prime is 22132221997. The next prime is 22132222033. The reversal of 22132222031 is 13022223122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22132222031 - 214 = 22132205647 is a prime.

It is a super-2 number, since 2×221322220312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22132221994 and 22132222012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22132222033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299084045 + ... + 299084118.

It is an arithmetic number, because the mean of its divisors is an integer number (5682597558).

Almost surely, 222132222031 is an apocalyptic number.

22132222031 is a deficient number, since it is larger than the sum of its proper divisors (598168201).

22132222031 is an equidigital number, since it uses as much as digits as its factorization.

22132222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598168200.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22132222031 its reverse (13022223122), we get a palindrome (35154445153).

The spelling of 22132222031 in words is "twenty-two billion, one hundred thirty-two million, two hundred twenty-two thousand, thirty-one".

Divisors: 1 37 598168163 22132222031