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2111021020221 = 31196995878693
BaseRepresentation
bin11110101110000010101…
…010000111010000111101
321110210220200111000202220
4132232002222013100331
5234041332340121341
64253442322435553
7305342032414611
oct36560252072075
97423820430686
102111021020221
11744308371563
122a1168802bb9
131240b744b049
14742614d3341
1539da4a59a66
hex1eb82a8743d

2111021020221 has 8 divisors (see below), whose sum is σ = 2814718687200. Its totient is φ = 1407335350032.

The previous prime is 2111021020219. The next prime is 2111021020271. The reversal of 2111021020221 is 1220201201112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2111021020221 - 21 = 2111021020219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2111021020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111021020271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2580250 + ... + 3298443.

It is an arithmetic number, because the mean of its divisors is an integer number (351839835900).

Almost surely, 22111021020221 is an apocalyptic number.

It is an amenable number.

2111021020221 is a deficient number, since it is larger than the sum of its proper divisors (703697666979).

2111021020221 is a wasteful number, since it uses less digits than its factorization.

2111021020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5998395.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2111021020221 its reverse (1220201201112), we get a palindrome (3331222221333).

The spelling of 2111021020221 in words is "two trillion, one hundred eleven billion, twenty-one million, twenty thousand, two hundred twenty-one".

Divisors: 1 3 119699 359097 5878693 17636079 703673673407 2111021020221