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2122011010001 = 13915266266259
BaseRepresentation
bin11110111000010001101…
…101100110001111010001
321111212021121002100120102
4132320101231212033101
5234231334304310001
64302501032222145
7306211260656261
oct36702155461721
97455247070512
102122011010001
11748a37992543
122a331523a955
1312514927c28c
14749c4d197a1
153a2e97bce6b
hex1ee11b663d1

2122011010001 has 4 divisors (see below), whose sum is σ = 2137277276400. Its totient is φ = 2106744743604.

The previous prime is 2122011009991. The next prime is 2122011010033. The reversal of 2122011010001 is 1000101102212.

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 a de Polignac number, because none of the positive numbers 2k-2122011010001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122011010061) 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, 7633132991 + ... + 7633133268.

It is an arithmetic number, because the mean of its divisors is an integer number (534319319100).

Almost surely, 22122011010001 is an apocalyptic number.

It is an amenable number.

2122011010001 is a deficient number, since it is larger than the sum of its proper divisors (15266266399).

2122011010001 is a wasteful number, since it uses less digits than its factorization.

2122011010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15266266398.

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

Adding to 2122011010001 its reverse (1000101102212), we get a palindrome (3122112112213).

The spelling of 2122011010001 in words is "two trillion, one hundred twenty-two billion, eleven million, ten thousand, one".

Divisors: 1 139 15266266259 2122011010001