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20120222110211 = 757311503230969
BaseRepresentation
bin1001001001100100110101…
…01100010001001000000011
32122020110210212120111002022
410210302122230101020003
510114122203330011321
6110443034043112055
74144431601056626
oct444623254211003
978213725514068
1020120222110211
116457a35936913
12230b52581262b
13b2c4374c7162
144d7b76c9ddbd
1524d58e5b1dab
hex124c9ab11203

20120222110211 has 8 divisors (see below), whose sum is σ = 20124715437120. Its totient is φ = 20115729283392.

The previous prime is 20120222110147. The next prime is 20120222110229. The reversal of 20120222110211 is 11201122202102.

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 20120222110211 - 26 = 20120222110147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20120222110211.

It is not an unprimeable number, because it can be changed into a prime (20120222110271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86996735 + ... + 87227703.

It is an arithmetic number, because the mean of its divisors is an integer number (2515589429640).

Almost surely, 220120222110211 is an apocalyptic number.

20120222110211 is a deficient number, since it is larger than the sum of its proper divisors (4493326909).

20120222110211 is a wasteful number, since it uses less digits than its factorization.

20120222110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250045.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20120222110211 its reverse (11201122202102), we get a palindrome (31321344312313).

The spelling of 20120222110211 in words is "twenty trillion, one hundred twenty billion, two hundred twenty-two million, one hundred ten thousand, two hundred eleven".

Divisors: 1 7573 11503 230969 87112219 1749128237 2656836407 20120222110211