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222121200010101 = 3791111610537871
BaseRepresentation
bin110010100000010010011111…
…001110010100001101110101
31002010110120122100010212002020
4302200102133032110031311
5213103213204200310401
62104225023125303353
764533504255046560
oct6240223716241565
91063416570125066
10222121200010101
1164858087799677
1220ab46b0564b59
1396c2c297ba292
143cbca1b1ab4d7
151aa2d373e6d36
hexca049f394375

222121200010101 has 16 divisors (see below), whose sum is σ = 338841937256448. Its totient is φ = 126787073540400.

The previous prime is 222121200010063. The next prime is 222121200010189. The reversal of 222121200010101 is 101010002121222.

It is not a de Polignac number, because 222121200010101 - 29 = 222121200009589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121200000101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5805249805 + ... + 5805288066.

It is an arithmetic number, because the mean of its divisors is an integer number (21177621078528).

Almost surely, 2222121200010101 is an apocalyptic number.

222121200010101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222121200010101 is a deficient number, since it is larger than the sum of its proper divisors (116720737246347).

222121200010101 is a wasteful number, since it uses less digits than its factorization.

222121200010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11610538792.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 222121200010101 its reverse (101010002121222), we get a palindrome (323131202131323).

The spelling of 222121200010101 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two hundred million, ten thousand, one hundred one".

Divisors: 1 3 7 21 911 2733 6377 19131 11610537871 34831613613 81273765097 243821295291 10577200000481 31731600001443 74040400003367 222121200010101