122111021212011 has 48 divisors (see below), whose sum is σ = 194424117599712. Its totient is φ = 73376462476800.

The previous prime is 122111021211943. The next prime is 122111021212031. The reversal of 122111021212011 is 110212120111221.

It is a happy number.

122111021212011 is a `hidden beast` number, since 1 + 221 + 110 + 212 + 120 + 1 + 1 = 666.

It is not a de Polignac number, because 122111021212011 - 2⁹ = 122111021211499 is a prime.

It is a super-2 number, since 2×122111021212011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122111021212031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13905831 + ... + 20918751.

It is an arithmetic number, because the mean of its divisors is an integer number (4050502449994).

Almost surely, 2^{122111021212011} is an apocalyptic number.

122111021212011 is a deficient number, since it is larger than the sum of its proper divisors (72313096387701).

122111021212011 is a wasteful number, since it uses less digits than its factorization.

122111021212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7016444 (or 7016441 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 122111021212011 its reverse (110212120111221), we get a palindrome (232323141323232).

It can be divided in two parts, 1221 and 11021212011, that multiplied together give a palindrome (13456899865431).

The spelling of 122111021212011 in words is "one hundred twenty-two trillion, one hundred eleven billion, twenty-one million, two hundred twelve thousand, eleven".