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22601226121 = 30893731597
BaseRepresentation
bin10101000011001000…
…110101011110001001
32011100010012020122221
4111003020311132021
5332241403213441
614214410414041
71430036152345
oct250310653611
964303166587
1022601226121
119648891781
124469131321
1321925899a6
141145966625
158c42de8d1
hex543235789

22601226121 has 4 divisors (see below), whose sum is σ = 22601988612. Its totient is φ = 22600463632.

The previous prime is 22601226073. The next prime is 22601226133. The reversal of 22601226121 is 12162210622.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16342042896 + 6259183225 = 127836^2 + 79115^2 .

It is a cyclic number.

It is not a de Polignac number, because 22601226121 - 233 = 14011291529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22601226721) 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, 334906 + ... + 396691.

It is an arithmetic number, because the mean of its divisors is an integer number (5650497153).

Almost surely, 222601226121 is an apocalyptic number.

It is an amenable number.

22601226121 is a deficient number, since it is larger than the sum of its proper divisors (762491).

22601226121 is an equidigital number, since it uses as much as digits as its factorization.

22601226121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762490.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 22601226121 its reverse (12162210622), we get a palindrome (34763436743).

The spelling of 22601226121 in words is "twenty-two billion, six hundred one million, two hundred twenty-six thousand, one hundred twenty-one".

Divisors: 1 30893 731597 22601226121