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22222232101 = 411094972529
BaseRepresentation
bin10100101100100011…
…000101101000100101
32010100201001100121101
4110230203011220211
5331002342411401
614113031320101
71414454566456
oct245443055045
963321040541
1022222232101
119473963983
124382220031
132131bc1684
14110b4ad12d
158a0dca101
hex52c8c5a25

22222232101 has 8 divisors (see below), whose sum is σ = 22973088600. Its totient is φ = 21481320960.

The previous prime is 22222232033. The next prime is 22222232117. The reversal of 22222232101 is 10123222222.

It can be written as a sum of positive squares in 4 ways, for example, as 5838488100 + 16383744001 = 76410^2 + 127999^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22222232101 - 27 = 22222231973 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 (22222232141) 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, 2481796 + ... + 2490733.

It is an arithmetic number, because the mean of its divisors is an integer number (2871636075).

Almost surely, 222222232101 is an apocalyptic number.

It is an amenable number.

22222232101 is a deficient number, since it is larger than the sum of its proper divisors (750856499).

22222232101 is a wasteful number, since it uses less digits than its factorization.

22222232101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4972679.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22222232101 its reverse (10123222222), we get a palindrome (32345454323).

The spelling of 22222232101 in words is "twenty-two billion, two hundred twenty-two million, two hundred thirty-two thousand, one hundred one".

Divisors: 1 41 109 4469 4972529 203873689 542005661 22222232101