211121001222201 has 32 divisors (see below), whose sum is σ = 357803648787200. Its totient is φ = 120522412788480.

The previous prime is 211121001222193. The next prime is 211121001222227. The reversal of 211121001222201 is 102222100121112.

211121001222201 is a `hidden beast` number, since 2 + 111 + 210 + 0 + 122 + 220 + 1 = 666.

It is not a de Polignac number, because 211121001222201 - 2³ = 211121001222193 is a prime.

It is a super-2 number, since 2×211121001222201² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211121001222251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 546840496 + ... + 547226433.

It is an arithmetic number, because the mean of its divisors is an integer number (11181364024600).

Almost surely, 2^{211121001222201} is an apocalyptic number.

211121001222201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

211121001222201 is a deficient number, since it is larger than the sum of its proper divisors (146682647564999).

211121001222201 is a wasteful number, since it uses less digits than its factorization.

211121001222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094067966 (or 1094067960 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 211121001222201 its reverse (102222100121112), we get a palindrome (313343101343313).

The spelling of 211121001222201 in words is "two hundred eleven trillion, one hundred twenty-one billion, one million, two hundred twenty-two thousand, two hundred one".