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1214011141221 = 3404670380407
BaseRepresentation
bin10001101010101000101…
…100111110110001100101
311022001120112010211102210
4101222220230332301211
5124342243323004341
62325413051554033
7153465220303164
oct21525054766145
94261515124383
101214011141221
1142894a70494a
12177349a5b919
138a6332c7a08
1442a892a13db
15218a4cbec16
hex11aa8b3ec65

1214011141221 has 4 divisors (see below), whose sum is σ = 1618681521632. Its totient is φ = 809340760812.

The previous prime is 1214011141201. The next prime is 1214011141223. The reversal of 1214011141221 is 1221411104121.

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 not a de Polignac number, because 1214011141221 - 233 = 1205421206629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214011141223) 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, 202335190201 + ... + 202335190206.

It is an arithmetic number, because the mean of its divisors is an integer number (404670380408).

Almost surely, 21214011141221 is an apocalyptic number.

It is an amenable number.

1214011141221 is a deficient number, since it is larger than the sum of its proper divisors (404670380411).

1214011141221 is an equidigital number, since it uses as much as digits as its factorization.

1214011141221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404670380410.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 1214011141221 its reverse (1221411104121), we get a palindrome (2435422245342).

The spelling of 1214011141221 in words is "one trillion, two hundred fourteen billion, eleven million, one hundred forty-one thousand, two hundred twenty-one".

Divisors: 1 3 404670380407 1214011141221