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2201202221231 = 13169323247787
BaseRepresentation
bin100000000010000001111…
…000000110000010101111
321210102200120022200221202
4200002001320012002233
5242031030232034411
64403115054520115
7315013562111156
oct40020170060257
97712616280852
102201202221231
117795852a5652
122b673620603b
1312c759974a50
14787784bc59d
153c3d1c7a83b
hex20081e060af

2201202221231 has 4 divisors (see below), whose sum is σ = 2370525469032. Its totient is φ = 2031878973432.

The previous prime is 2201202221213. The next prime is 2201202221243. The reversal of 2201202221231 is 1321222021022.

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

It is a cyclic number.

It is not a de Polignac number, because 2201202221231 - 218 = 2201201959087 is a prime.

It is a super-2 number, since 2×22012022212312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201202221261) 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, 84661623881 + ... + 84661623906.

It is an arithmetic number, because the mean of its divisors is an integer number (592631367258).

Almost surely, 22201202221231 is an apocalyptic number.

2201202221231 is a deficient number, since it is larger than the sum of its proper divisors (169323247801).

2201202221231 is a wasteful number, since it uses less digits than its factorization.

2201202221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169323247800.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2201202221231 its reverse (1321222021022), we get a palindrome (3522424242253).

The spelling of 2201202221231 in words is "two trillion, two hundred one billion, two hundred two million, two hundred twenty-one thousand, two hundred thirty-one".

Divisors: 1 13 169323247787 2201202221231