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2242212231 = 37641166571
BaseRepresentation
bin1000010110100101…
…0111000110000111
312210021010011221110
42011221113012013
514043001242411
61010254220103
7106364326620
oct20551270607
95707104843
102242212231
11a50741266
12526ab4633
132996c10cc
14173b08a47
15d1ca92a6
hex85a57187

2242212231 has 16 divisors (see below), whose sum is σ = 3422055168. Its totient is φ = 1279257600.

The previous prime is 2242212209. The next prime is 2242212257. The reversal of 2242212231 is 1322122422.

It is not a de Polignac number, because 2242212231 - 27 = 2242212103 is a prime.

It is a super-2 number, since 2×22422122312 = 10055031377691994722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2242212198 and 2242212207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2242212031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69825 + ... + 96746.

It is an arithmetic number, because the mean of its divisors is an integer number (213878448).

Almost surely, 22242212231 is an apocalyptic number.

2242212231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2242212231 is a deficient number, since it is larger than the sum of its proper divisors (1179842937).

2242212231 is a wasteful number, since it uses less digits than its factorization.

2242212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167222.

The product of its digits is 768, while the sum is 21.

The square root of 2242212231 is about 47352.0034528635. The cubic root of 2242212231 is about 1308.8571177293.

Adding to 2242212231 its reverse (1322122422), we get a palindrome (3564334653).

The spelling of 2242212231 in words is "two billion, two hundred forty-two million, two hundred twelve thousand, two hundred thirty-one".

Divisors: 1 3 7 21 641 1923 4487 13461 166571 499713 1165997 3497991 106772011 320316033 747404077 2242212231