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201012212212221 = 369593962798999
BaseRepresentation
bin101101101101000111001101…
…100000010010000111111101
3222100201120122200111010211210
4231231013031200102013331
5202321341002311242341
61551303422510035033
760224440002210024
oct5555071540220775
9870646580433753
10201012212212221
1159059889464013
121a66561b1a8a79
1388214a7660ca7
14378d085d298bb
151838bc79e3c16
hexb6d1cd8121fd

201012212212221 has 8 divisors (see below), whose sum is σ = 268020134424000. Its totient is φ = 134006215737632.

The previous prime is 201012212212187. The next prime is 201012212212237. The reversal of 201012212212221 is 122212212210102.

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 201012212212221 - 29 = 201012212211709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012212212261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481190721 + ... + 481608278.

It is an arithmetic number, because the mean of its divisors is an integer number (33502516803000).

Almost surely, 2201012212212221 is an apocalyptic number.

It is an amenable number.

201012212212221 is a deficient number, since it is larger than the sum of its proper divisors (67007922211779).

201012212212221 is an equidigital number, since it uses as much as digits as its factorization.

201012212212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962868595.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 201012212212221 its reverse (122212212210102), we get a palindrome (323224424422323).

The spelling of 201012212212221 in words is "two hundred one trillion, twelve billion, two hundred twelve million, two hundred twelve thousand, two hundred twenty-one".

Divisors: 1 3 69593 208779 962798999 2888396997 67004070737407 201012212212221