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22101011201 = 35116294791
BaseRepresentation
bin10100100101010100…
…101010101100000001
32010001020221200210102
4110211110222230001
5330230324324301
614053021212145
71411453331663
oct244524525401
963036850712
1022101011201
119411498915
124349701055
132112a5ab29
1410d9356533
15895432b6b
hex52552ab01

22101011201 has 4 divisors (see below), whose sum is σ = 22107309504. Its totient is φ = 22094712900.

The previous prime is 22101011197. The next prime is 22101011203. The reversal of 22101011201 is 10211010122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10211010122 = 25105505061.

It is a cyclic number.

It is not a de Polignac number, because 22101011201 - 22 = 22101011197 is a prime.

It is a super-2 number, since 2×221010112012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22101011203) 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, 3143885 + ... + 3150906.

It is an arithmetic number, because the mean of its divisors is an integer number (5526827376).

Almost surely, 222101011201 is an apocalyptic number.

It is an amenable number.

22101011201 is a deficient number, since it is larger than the sum of its proper divisors (6298303).

22101011201 is an equidigital number, since it uses as much as digits as its factorization.

22101011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6298302.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22101011201 its reverse (10211010122), we get a palindrome (32312021323).

The spelling of 22101011201 in words is "twenty-two billion, one hundred one million, eleven thousand, two hundred one".

Divisors: 1 3511 6294791 22101011201