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1312101013222 = 2656050506611
BaseRepresentation
bin10011000101111111010…
…100001001011011100110
311122102202120112121200001
4103011333110021123212
5132444140324410342
62442434302211514
7163540041410326
oct23057724113346
94572676477601
101312101013222
114665058a756a
12192363b83b9a
13969661689ac
144771277d286
15241e649a8b7
hex1317f5096e6

1312101013222 has 4 divisors (see below), whose sum is σ = 1968151519836. Its totient is φ = 656050506610.

The previous prime is 1312101013213. The next prime is 1312101013291. The reversal of 1312101013222 is 2223101012131.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1312101013222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328025253304 + ... + 328025253307.

It is an arithmetic number, because the mean of its divisors is an integer number (492037879959).

Almost surely, 21312101013222 is an apocalyptic number.

1312101013222 is a deficient number, since it is larger than the sum of its proper divisors (656050506614).

1312101013222 is an equidigital number, since it uses as much as digits as its factorization.

1312101013222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656050506613.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1312101013222 its reverse (2223101012131), we get a palindrome (3535202025353).

The spelling of 1312101013222 in words is "one trillion, three hundred twelve billion, one hundred one million, thirteen thousand, two hundred twenty-two".

Divisors: 1 2 656050506611 1312101013222