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2222122022021 = 115910931412081
BaseRepresentation
bin100000010101100000110…
…010110011010010000101
321212102200111121200200102
4200111200302303102011
5242401401214201041
64420455002453445
7316354153353056
oct40254062632205
97772614550612
102222122022021
1178743aa50610
122ba7b4204285
13131711a898b5
14797a09d672d
153cc0863509b
hex20560cb3485

2222122022021 has 16 divisors (see below), whose sum is σ = 2487836894400. Its totient is φ = 1967652691200.

The previous prime is 2222122022017. The next prime is 2222122022033. The reversal of 2222122022021 is 1202202212222.

It is a cyclic number.

It is not a de Polignac number, because 2222122022021 - 22 = 2222122022017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2222122021984 and 2222122022002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222122022051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15635300 + ... + 15776781.

It is an arithmetic number, because the mean of its divisors is an integer number (155489805900).

Almost surely, 22222122022021 is an apocalyptic number.

It is an amenable number.

2222122022021 is a deficient number, since it is larger than the sum of its proper divisors (265714872379).

2222122022021 is a wasteful number, since it uses less digits than its factorization.

2222122022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31412260.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2222122022021 its reverse (1202202212222), we get a palindrome (3424324234243).

The spelling of 2222122022021 in words is "two trillion, two hundred twenty-two billion, one hundred twenty-two million, twenty-two thousand, twenty-one".

Divisors: 1 11 59 109 649 1199 6431 70741 31412081 345532891 1853312779 3423916829 20386440569 37663085119 202011092911 2222122022021