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1000222012191 = 3794528993187
BaseRepresentation
bin11101000111000011110…
…00001011001100011111
310112121202012011210221210
432203201320023030133
5112341423313342231
62043255020555503
7132156301552623
oct16434170131437
93477665153853
101000222012191
11356212282a46
12141a243b2b93
137342228c0bc
14365a7b19183
151b040ebca46
hexe8e1e0b31f

1000222012191 has 16 divisors (see below), whose sum is σ = 1350555046400. Its totient is φ = 658352380608.

The previous prime is 1000222012189. The next prime is 1000222012213. The reversal of 1000222012191 is 1912102220001.

It is not a de Polignac number, because 1000222012191 - 21 = 1000222012189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000222012151) 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, 10686900 + ... + 10780086.

It is an arithmetic number, because the mean of its divisors is an integer number (84409690400).

Almost surely, 21000222012191 is an apocalyptic number.

1000222012191 is a deficient number, since it is larger than the sum of its proper divisors (350333034209).

1000222012191 is an equidigital number, since it uses as much as digits as its factorization.

1000222012191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138558.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 1000222012191 its reverse (1912102220001), we get a palindrome (2912324232192).

The spelling of 1000222012191 in words is "one trillion, two hundred twenty-two million, twelve thousand, one hundred ninety-one".

Divisors: 1 3 79 237 45289 93187 135867 279561 3577831 7361773 10733493 22085319 4220346043 12661038129 333407337397 1000222012191