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1222030122013 = 7722731582381
BaseRepresentation
bin10001110010000110101…
…010111101110000011101
311022211021101021021002101
4101302012222331300131
5130010204202401023
62333220510325101
7154201021436011
oct21620652756035
94284241237071
101222030122013
114312951668a8
12178a074b9791
138b31075536c
144320a2aa541
1521bc3cb91ad
hex11c86abdc1d

1222030122013 has 4 divisors (see below), whose sum is σ = 1222032476668. Its totient is φ = 1222027767360.

The previous prime is 1222030121999. The next prime is 1222030122041. The reversal of 1222030122013 is 3102210302221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 610714116324 + 611316005689 = 781482^2 + 781867^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1222030122013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222030122043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18918 + ... + 1563463.

It is an arithmetic number, because the mean of its divisors is an integer number (305508119167).

Almost surely, 21222030122013 is an apocalyptic number.

It is an amenable number.

1222030122013 is a deficient number, since it is larger than the sum of its proper divisors (2354655).

1222030122013 is an equidigital number, since it uses as much as digits as its factorization.

1222030122013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354654.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1222030122013 its reverse (3102210302221), we get a palindrome (4324240424234).

The spelling of 1222030122013 in words is "one trillion, two hundred twenty-two billion, thirty million, one hundred twenty-two thousand, thirteen".

Divisors: 1 772273 1582381 1222030122013