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2012202220221 = 321871119496539
BaseRepresentation
bin11101010010000000100…
…110010011101010111101
321010100211211110212022100
4131102000212103222331
5230431442232021341
64140220512535313
7265243150444104
oct35220046235275
97110754425270
102012202220221
11706408771506
12285b8a551539
1311799957c91b
146d5692ab03b
153751e3953b6
hex1d480993abd

2012202220221 has 12 divisors (see below), whose sum is σ = 2908067797440. Its totient is φ = 1340751156360.

The previous prime is 2012202220213. The next prime is 2012202220229. The reversal of 2012202220221 is 1220222022102.

2012202220221 is a `hidden beast` number, since 2 + 0 + 1 + 220 + 2 + 220 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (2012202220213) and next prime (2012202220229).

It is not a de Polignac number, because 2012202220221 - 23 = 2012202220213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012202220194 and 2012202220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012202220229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59731431 + ... + 59765108.

It is an arithmetic number, because the mean of its divisors is an integer number (242338983120).

Almost surely, 22012202220221 is an apocalyptic number.

It is an amenable number.

2012202220221 is a deficient number, since it is larger than the sum of its proper divisors (895865577219).

2012202220221 is a wasteful number, since it uses less digits than its factorization.

2012202220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119498416 (or 119498413 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2012202220221 its reverse (1220222022102), we get a palindrome (3232424242323).

The spelling of 2012202220221 in words is "two trillion, twelve billion, two hundred two million, two hundred twenty thousand, two hundred twenty-one".

Divisors: 1 3 9 1871 5613 16839 119496539 358489617 1075468851 223578024469 670734073407 2012202220221