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22101010231 is a prime number
BaseRepresentation
bin10100100101010100…
…101010011100110111
32010001020221122110111
4110211110222130313
5330230324311411
614053021203451
71411453326106
oct244524523467
963036848414
1022101010231
119411498113
124349700587
132112a5a561
1410d935603d
15895432721
hex52552a737

22101010231 has 2 divisors, whose sum is σ = 22101010232. Its totient is φ = 22101010230.

The previous prime is 22101010219. The next prime is 22101010241. The reversal of 22101010231 is 13201010122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22101010231 - 25 = 22101010199 is a prime.

It is a super-2 number, since 2×221010102312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22101010241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050505115 + 11050505116.

It is an arithmetic number, because the mean of its divisors is an integer number (11050505116).

Almost surely, 222101010231 is an apocalyptic number.

22101010231 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101010231 is an equidigital number, since it uses as much as digits as its factorization.

22101010231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 22101010231 its reverse (13201010122), we get a palindrome (35302020353).

The spelling of 22101010231 in words is "twenty-two billion, one hundred one million, ten thousand, two hundred thirty-one".