Search a number
-
+
1222102131131 = 7226992716951
BaseRepresentation
bin10001110010001010111…
…101101010000110111011
311022211110101202201000202
4101302022331222012323
5130010331121144011
62333232001552415
7154202554501100
oct21621275520673
94284411681022
101222102131131
1143132187a372
12178a2764570b
138b3226484cb
1443215a92aa7
1521bca29023b
hex11c8af6a1bb

1222102131131 has 12 divisors (see below), whose sum is σ = 1426913891280. Its totient is φ = 1043621989200.

The previous prime is 1222102131119. The next prime is 1222102131149. The reversal of 1222102131131 is 1311312012221.

It is a de Polignac number, because none of the positive numbers 2k-1222102131131 is a prime.

It is a super-2 number, since 2×12221021311312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222102131161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46345295 + ... + 46371656.

It is an arithmetic number, because the mean of its divisors is an integer number (118909490940).

Almost surely, 21222102131131 is an apocalyptic number.

1222102131131 is a deficient number, since it is larger than the sum of its proper divisors (204811760149).

1222102131131 is an equidigital number, since it uses as much as digits as its factorization.

1222102131131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92717234 (or 92717227 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1222102131131 its reverse (1311312012221), we get a palindrome (2533414143352).

The spelling of 1222102131131 in words is "one trillion, two hundred twenty-two billion, one hundred two million, one hundred thirty-one thousand, one hundred thirty-one".

Divisors: 1 7 49 269 1883 13181 92716951 649018657 4543130599 24940859819 174586018733 1222102131131