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1222402027 = 71115875351
BaseRepresentation
bin100100011011100…
…0101111111101011
310011012011110100011
41020313011333223
510000413331102
6321144152351
742202150210
oct11067057753
93135143304
101222402027
11578017810
122a14686b7
13166339012
14b84c1b07
15724b32d7
hex48dc5feb

1222402027 has 8 divisors (see below), whose sum is σ = 1524033792. Its totient is φ = 952521000.

The previous prime is 1222402007. The next prime is 1222402033. The reversal of 1222402027 is 7202042221.

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 1222402027 - 27 = 1222401899 is a prime.

It is a super-2 number, since 2×12224020272 = 2988533431227417458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222401989 and 1222402007.

It is not an unprimeable number, because it can be changed into a prime (1222402007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7937599 + ... + 7937752.

It is an arithmetic number, because the mean of its divisors is an integer number (190504224).

Almost surely, 21222402027 is an apocalyptic number.

1222402027 is a deficient number, since it is larger than the sum of its proper divisors (301631765).

1222402027 is a wasteful number, since it uses less digits than its factorization.

1222402027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15875369.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 1222402027 is about 34962.8664013693. The cubic root of 1222402027 is about 1069.2305374275.

Adding to 1222402027 its reverse (7202042221), we get a palindrome (8424444248).

The spelling of 1222402027 in words is "one billion, two hundred twenty-two million, four hundred two thousand, twenty-seven".

Divisors: 1 7 11 77 15875351 111127457 174628861 1222402027