122221201021211 has 16 divisors (see below), whose sum is σ = 127791438179328. Its totient is φ = 116755091133600.

The previous prime is 122221201021177. The next prime is 122221201021253. The reversal of 122221201021211 is 112120102122221.

It is a cyclic number.

It is not a de Polignac number, because 122221201021211 - 2⁴² = 117823154510107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122221201021261) 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, 16954880 + ... + 23063181.

It is an arithmetic number, because the mean of its divisors is an integer number (7986964886208).

Almost surely, 2^{122221201021211} is an apocalyptic number.

122221201021211 is a deficient number, since it is larger than the sum of its proper divisors (5570237158117).

122221201021211 is a wasteful number, since it uses less digits than its factorization.

122221201021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40019362.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 122221201021211 its reverse (112120102122221), we get a palindrome (234341303143432).

The spelling of 122221201021211 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, two hundred one million, twenty-one thousand, two hundred eleven".