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20122001110001 = 715423831863721
BaseRepresentation
bin1001001001101000001001…
…01110100111001111110001
32122020122101212002001000102
410210310010232213033301
510114134324241010001
6110443530353202145
74144523642241140
oct444640456471761
978218355061012
1020122001110001
11645876905777a
12230b941560355
13b2c65bc4375b
144d7ca526b757
1524d64586ce6b
hex124d04ba73f1

20122001110001 has 8 divisors (see below), whose sum is σ = 22996599945984. Its totient is φ = 17247409086240.

The previous prime is 20122001109983. The next prime is 20122001110033. The reversal of 20122001110001 is 10001110022102.

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 20122001110001 - 242 = 15723954598897 is a prime.

It is a super-2 number, since 2×201220011100012 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20122001110051) 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, 9864821 + ... + 11728541.

It is an arithmetic number, because the mean of its divisors is an integer number (2874574993248).

Almost surely, 220122001110001 is an apocalyptic number.

It is an amenable number.

20122001110001 is a deficient number, since it is larger than the sum of its proper divisors (2874598835983).

20122001110001 is a wasteful number, since it uses less digits than its factorization.

20122001110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3406111.

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

Adding to 20122001110001 its reverse (10001110022102), we get a palindrome (30123111132103).

The spelling of 20122001110001 in words is "twenty trillion, one hundred twenty-two billion, one million, one hundred ten thousand, one".

Divisors: 1 7 1542383 1863721 10796681 13046047 2874571587143 20122001110001