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20102202202211 = 177316198390171
BaseRepresentation
bin1001001001000011010001…
…00111110001100001100011
32122011202022000221022102022
410210201220213301201203
510113323302230432321
6110430454010012055
74143223211300663
oct444415047614143
978152260838368
1020102202202211
116450329097268
122307b36a1702b
13b2a8251162bc
144d6d479701a3
1524cd875c4dab
hex1248689f1863

20102202202211 has 8 divisors (see below), whose sum is σ = 21576255709104. Its totient is φ = 18660545475840.

The previous prime is 20102202202169. The next prime is 20102202202241. The reversal of 20102202202211 is 11220220220102.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20102202202211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 20102202202211.

It is not an unprimeable number, because it can be changed into a prime (20102202202241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8099193845 + ... + 8099196326.

It is an arithmetic number, because the mean of its divisors is an integer number (2697031963638).

Almost surely, 220102202202211 is an apocalyptic number.

20102202202211 is a deficient number, since it is larger than the sum of its proper divisors (1474053506893).

20102202202211 is a wasteful number, since it uses less digits than its factorization.

20102202202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16198390261.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20102202202211 its reverse (11220220220102), we get a palindrome (31322422422313).

The spelling of 20102202202211 in words is "twenty trillion, one hundred two billion, two hundred two million, two hundred two thousand, two hundred eleven".

Divisors: 1 17 73 1241 16198390171 275372632907 1182482482483 20102202202211