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50212100221111 = 177874337865357
BaseRepresentation
bin10110110101010111010100…
…11001011010100010110111
320120210020012121010212111201
423122223222121122202313
523040133340124033421
6254443042001113331
713401463436514523
oct1332535231324267
9216706177125451
1050212100221111
1114aa9917603524
12576b536928847
132202c99896caa
14c583c8754d83
155c11ea54eb91
hex2daaea65a8b7

50212100221111 has 16 divisors (see below), whose sum is σ = 53245643888736. Its totient is φ = 47187461154816.

The previous prime is 50212100221091. The next prime is 50212100221117. The reversal of 50212100221111 is 11112200121205.

It is a cyclic number.

It is not a de Polignac number, because 50212100221111 - 25 = 50212100221079 is a prime.

It is a super-4 number, since 4×502121002211114 (a number of 56 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50212100221117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57592045 + ... + 58457401.

It is an arithmetic number, because the mean of its divisors is an integer number (3327852743046).

Almost surely, 250212100221111 is an apocalyptic number.

50212100221111 is a deficient number, since it is larger than the sum of its proper divisors (3033543667625).

50212100221111 is a wasteful number, since it uses less digits than its factorization.

50212100221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870498.

The product of its (nonzero) digits is 80, while the sum is 19.

Adding to 50212100221111 its reverse (11112200121205), we get a palindrome (61324300342316).

The spelling of 50212100221111 in words is "fifty trillion, two hundred twelve billion, one hundred million, two hundred twenty-one thousand, one hundred eleven".

Divisors: 1 17 787 4337 13379 73729 865357 3413219 14711069 58024723 681035959 3753053309 11577611303 63801906253 2953652954183 50212100221111