Search a number
-
+
11211210000001 = 111049971592859
BaseRepresentation
bin1010001100100101000000…
…1100001000011010000001
31110200210002111112100220001
42203021100030020122001
52432141024230000001
635502205254520001
72234661143440144
oct243112014103201
943623074470801
1011211210000001
113632713851020
121310983666001
1363429c01670b
142aa8a839005b
15146968d50001
hexa3250308681

11211210000001 has 8 divisors (see below), whose sum is σ = 12242070036000. Its totient is φ = 10182293151840.

The previous prime is 11211209999963. The next prime is 11211210000019. The reversal of 11211210000001 is 10000001211211.

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

It is a cyclic number.

It is not a de Polignac number, because 11211210000001 - 237 = 11073771046529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211210000071) 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, 485784891 + ... + 485807968.

It is an arithmetic number, because the mean of its divisors is an integer number (1530258754500).

Almost surely, 211211210000001 is an apocalyptic number.

11211210000001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11211210000001 is a deficient number, since it is larger than the sum of its proper divisors (1030860035999).

11211210000001 is a wasteful number, since it uses less digits than its factorization.

11211210000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971593919.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11211210000001 its reverse (10000001211211), we get a palindrome (21211211211212).

The spelling of 11211210000001 in words is "eleven trillion, two hundred eleven billion, two hundred ten million, one", and thus it is an aban number.

Divisors: 1 11 1049 11539 971592859 10687521449 1019200909091 11211210000001