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202111022230213 = 312411495111017
BaseRepresentation
bin101101111101000110100011…
…101011110110101011000101
3222111121121212122101120010211
4231331012203223312223011
5202442341333142331323
61553504304414115421
760400016354232205
oct5575064353665305
9874547778346124
10202111022230213
11594428920309a8
121a8025784abb71
1388a0caba418a5
1437ca323350405
151857588c8770d
hexb7d1a3af6ac5

202111022230213 has 12 divisors (see below), whose sum is σ = 208846161965100. Its totient is φ = 195586520322240.

The previous prime is 202111022230177. The next prime is 202111022230259. The reversal of 202111022230213 is 312032220111202.

It can be written as a sum of positive squares in 2 ways, for example, as 6163014781764 + 195948007448449 = 2482542^2 + 13998143^2 .

It is not a de Polignac number, because 202111022230213 - 225 = 202110988675781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202111022234213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36988681 + ... + 42099697.

It is an arithmetic number, because the mean of its divisors is an integer number (17403846830425).

Almost surely, 2202111022230213 is an apocalyptic number.

It is an amenable number.

202111022230213 is a deficient number, since it is larger than the sum of its proper divisors (6735139734887).

202111022230213 is an equidigital number, since it uses as much as digits as its factorization.

202111022230213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5152228 (or 5152197 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 202111022230213 its reverse (312032220111202), we get a palindrome (514143242341415).

The spelling of 202111022230213 in words is "two hundred two trillion, one hundred eleven billion, twenty-two million, two hundred thirty thousand, two hundred thirteen".

Divisors: 1 31 961 41149 1275619 5111017 39544189 158441527 4911687337 210313238533 6519710394523 202111022230213