122420211 has 16 divisors (see below), whose sum is σ = 172099200. Its totient is φ = 77191488.

The previous prime is 122420203. The next prime is 122420227. The reversal of 122420211 is 112024221.

It is not a de Polignac number, because 122420211 - 2³ = 122420203 is a prime.

It is a super-2 number, since 2×122420211² = 29973416122569042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122420201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43495 + ... + 46223.

It is an arithmetic number, because the mean of its divisors is an integer number (10756200).

Almost surely, 2^122420211 is an apocalyptic number.

122420211 is a deficient number, since it is larger than the sum of its proper divisors (49678989).

122420211 is a wasteful number, since it uses less digits than its factorization.

122420211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 122420211 is about 11064.3667238573. The cubic root of 122420211 is about 496.5363428966.

Adding to 122420211 its reverse (112024221), we get a palindrome (234444432).

The spelling of 122420211 in words is "one hundred twenty-two million, four hundred twenty thousand, two hundred eleven".