Search a number
-
+
101222231 = 1146119961
BaseRepresentation
bin1100000100010…
…00011101010111
321001110121210112
412002020131113
5201403102411
614013313235
72336242355
oct602103527
9231417715
10101222231
1152156840
1229a9581b
1317c80c16
14d62c7d5
158d46b8b
hex6088757

101222231 has 8 divisors (see below), whose sum is σ = 110669328. Its totient is φ = 91816000.

The previous prime is 101222227. The next prime is 101222237. The reversal of 101222231 is 132222101.

It is a happy number.

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 101222231 - 22 = 101222227 is a prime.

It is a super-2 number, since 2×1012222312 = 20491880097234722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101222237) 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, 4910 + ... + 15051.

It is an arithmetic number, because the mean of its divisors is an integer number (13833666).

Almost surely, 2101222231 is an apocalyptic number.

101222231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101222231 is a deficient number, since it is larger than the sum of its proper divisors (9447097).

101222231 is a wasteful number, since it uses less digits than its factorization.

101222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20433.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 101222231 is about 10060.9259514222. The cubic root of 101222231 is about 466.0422622492.

Adding to 101222231 its reverse (132222101), we get a palindrome (233444332).

The spelling of 101222231 in words is "one hundred one million, two hundred twenty-two thousand, two hundred thirty-one".

Divisors: 1 11 461 5071 19961 219571 9202021 101222231