122012112021211 has 4 divisors (see below), whose sum is σ = 122650918890624. Its totient is φ = 121373305151800.

The previous prime is 122012112021197. The next prime is 122012112021227. The reversal of 122012112021211 is 112120211210221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122012112021211 - 2¹⁵ = 122012111988443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122012112021311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319403434420 + ... + 319403434801.

It is an arithmetic number, because the mean of its divisors is an integer number (30662729722656).

Almost surely, 2^{122012112021211} is an apocalyptic number.

122012112021211 is a deficient number, since it is larger than the sum of its proper divisors (638806869413).

122012112021211 is an equidigital number, since it uses as much as digits as its factorization.

122012112021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638806869412.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122012112021211 its reverse (112120211210221), we get a palindrome (234132323231432).

The spelling of 122012112021211 in words is "one hundred twenty-two trillion, twelve billion, one hundred twelve million, twenty-one thousand, two hundred eleven".