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22212210313 = 149149075237
BaseRepresentation
bin10100101011111100…
…110110111010001001
32010100000012012022001
4110223330312322021
5330442311212223
614112032431001
71414303446436
oct245374667211
963300165261
1022212210313
119469239407
12437a9a8461
13212cac2c17
14110a020b8d
158a009a9ad
hex52bf36e89

22212210313 has 4 divisors (see below), whose sum is σ = 22361285700. Its totient is φ = 22063134928.

The previous prime is 22212210287. The next prime is 22212210359. The reversal of 22212210313 is 31301221222.

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 2343334464 + 19868875849 = 48408^2 + 140957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22212210313 is a prime.

It is a super-3 number, since 3×222122103133 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212210373) 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, 74537470 + ... + 74537767.

It is an arithmetic number, because the mean of its divisors is an integer number (5590321425).

Almost surely, 222212210313 is an apocalyptic number.

It is an amenable number.

22212210313 is a deficient number, since it is larger than the sum of its proper divisors (149075387).

22212210313 is a wasteful number, since it uses less digits than its factorization.

22212210313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149075386.

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

Adding to 22212210313 its reverse (31301221222), we get a palindrome (53513431535).

The spelling of 22212210313 in words is "twenty-two billion, two hundred twelve million, two hundred ten thousand, three hundred thirteen".

Divisors: 1 149 149075237 22212210313