126205211 has 8 divisors (see below), whose sum is σ = 138001584. Its totient is φ = 114462720.

The previous prime is 126205207. The next prime is 126205213. The reversal of 126205211 is 112502621.

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 126205211 - 2² = 126205207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126205213) 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, 8486 + ... + 18011.

It is an arithmetic number, because the mean of its divisors is an integer number (17250198).

Almost surely, 2^126205211 is an apocalyptic number.

126205211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

126205211 is a deficient number, since it is larger than the sum of its proper divisors (11796373).

126205211 is a wasteful number, since it uses less digits than its factorization.

126205211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26941.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 126205211 is about 11234.1092659810. The cubic root of 126205211 is about 501.6018109236.

Adding to 126205211 its reverse (112502621), we get a palindrome (238707832).

The spelling of 126205211 in words is "one hundred twenty-six million, two hundred five thousand, two hundred eleven".