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12202121201201 = 30011406588291
BaseRepresentation
bin1011000110010000011100…
…0110011000011000110001
31121012111210210202222022022
42301210013012120120301
53044404421011414301
641541324352521225
72366400636614411
oct261440706303061
947174723688268
1012202121201201
113984988344948
121450a29850215
136a68693109a9
1430282b6a8641
151626126e8d1b
hexb1907198631

12202121201201 has 4 divisors (see below), whose sum is σ = 12202527819504. Its totient is φ = 12201714582900.

The previous prime is 12202121201183. The next prime is 12202121201243. The reversal of 12202121201201 is 10210212120221.

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.

It is a cyclic number.

It is not a de Polignac number, because 12202121201201 - 210 = 12202121200177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12202121201201.

It is not an unprimeable number, because it can be changed into a prime (12202121203201) 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, 203264135 + ... + 203324156.

It is an arithmetic number, because the mean of its divisors is an integer number (3050631954876).

Almost surely, 212202121201201 is an apocalyptic number.

It is an amenable number.

12202121201201 is a deficient number, since it is larger than the sum of its proper divisors (406618303).

12202121201201 is an equidigital number, since it uses as much as digits as its factorization.

12202121201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406618302.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12202121201201 its reverse (10210212120221), we get a palindrome (22412333321422).

The spelling of 12202121201201 in words is "twelve trillion, two hundred two billion, one hundred twenty-one million, two hundred one thousand, two hundred one".

Divisors: 1 30011 406588291 12202121201201