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2222022121201 = 11319939866489
BaseRepresentation
bin100000010101011010110…
…101101101011011110001
321212102102112122012112001
4200111122311231123301
5242401200130334301
64420441033334001
7316351531253041
oct40253265553361
97772375565461
102222022121201
11787399617653
122ba786867301
131316c717c29c
147979162d721
153cbee99ec01
hex2055ad6d6f1

2222022121201 has 8 divisors (see below), whose sum is σ = 2242811040840. Its totient is φ = 2201252938752.

The previous prime is 2222022121177. The next prime is 2222022121229. The reversal of 2222022121201 is 1021212202222.

It can be written as a sum of positive squares in 4 ways, for example, as 613792335601 + 1608229785600 = 783449^2 + 1268160^2 .

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 2222022121201 - 27 = 2222022121073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2222022121261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4708036 + ... + 5158453.

It is an arithmetic number, because the mean of its divisors is an integer number (280351380105).

Almost surely, 22222022121201 is an apocalyptic number.

It is an amenable number.

2222022121201 is a deficient number, since it is larger than the sum of its proper divisors (20788919639).

2222022121201 is a wasteful number, since it uses less digits than its factorization.

2222022121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9868595.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2222022121201 its reverse (1021212202222), we get a palindrome (3243234323423).

The spelling of 2222022121201 in words is "two trillion, two hundred twenty-two billion, twenty-two million, one hundred twenty-one thousand, two hundred one".

Divisors: 1 113 1993 225209 9866489 1114913257 19663912577 2222022121201