122021112211 has 16 divisors (see below), whose sum is σ = 134551044000. Its totient is φ = 110139033088.

The previous prime is 122021112149. The next prime is 122021112221. The reversal of 122021112211 is 112211120221.

It is a cyclic number.

It is not a de Polignac number, because 122021112211 - 2¹³ = 122021104019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122021112221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 757105 + ... + 904018.

It is an arithmetic number, because the mean of its divisors is an integer number (8409440250).

Almost surely, 2^122021112211 is an apocalyptic number.

122021112211 is a deficient number, since it is larger than the sum of its proper divisors (12529931789).

122021112211 is a wasteful number, since it uses less digits than its factorization.

122021112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661318.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122021112211 its reverse (112211120221), we get a palindrome (234232232432).

The spelling of 122021112211 in words is "one hundred twenty-two billion, twenty-one million, one hundred twelve thousand, two hundred eleven".