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BaseRepresentation
bin11011110010011010110100…
…000111001001010000101001
3121000201100120212221102102110
4123302122310013021100221
5112004310204412242301
61111531232200152533
734512345546231144
oct3362326407112051
9530640525842373
10122212021212201
1135a38910a05908
1211859612768749
13532670c660b0b
14222714438105b
15e1e0361180d6
hex6f26b41c9429

122212021212201 has 4 divisors (see below), whose sum is σ = 162949361616272. Its totient is φ = 81474680808132.

The previous prime is 122212021212143. The next prime is 122212021212223. The reversal of 122212021212201 is 102212120212221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 122212021212201 - 227 = 122211886994473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122212021213201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20368670202031 + ... + 20368670202036.

It is an arithmetic number, because the mean of its divisors is an integer number (40737340404068).

Almost surely, 2122212021212201 is an apocalyptic number.

It is an amenable number.

122212021212201 is a deficient number, since it is larger than the sum of its proper divisors (40737340404071).

122212021212201 is an equidigital number, since it uses as much as digits as its factorization.

122212021212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40737340404070.

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

Adding to 122212021212201 its reverse (102212120212221), we get a palindrome (224424141424422).

The spelling of 122212021212201 in words is "one hundred twenty-two trillion, two hundred twelve billion, twenty-one million, two hundred twelve thousand, two hundred one".

Divisors: 1 3 40737340404067 122212021212201