122120001011111 has 32 divisors (see below), whose sum is σ = 132484590950400. Its totient is φ = 112212726312960.

The previous prime is 122120001011093. The next prime is 122120001011171. The reversal of 122120001011111 is 111110100021221.

It is not a de Polignac number, because 122120001011111 - 2³⁴ = 122102821141927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120001011171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27451751 + ... + 31588583.

It is an arithmetic number, because the mean of its divisors is an integer number (4140143467200).

Almost surely, 2^{122120001011111} is an apocalyptic number.

122120001011111 is a deficient number, since it is larger than the sum of its proper divisors (10364589939289).

122120001011111 is a wasteful number, since it uses less digits than its factorization.

122120001011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4137279.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 122120001011111 its reverse (111110100021221), we get a palindrome (233230101032332).

The spelling of 122120001011111 in words is "one hundred twenty-two trillion, one hundred twenty billion, one million, eleven thousand, one hundred eleven".