120001011202111 has 16 divisors (see below), whose sum is σ = 135108475439616. Its totient is φ = 105751480909536.

The previous prime is 120001011202097. The next prime is 120001011202123. The reversal of 120001011202111 is 111202110100021.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120001011202111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120001011202091 and 120001011202100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001011200111) 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, 383534995 + ... + 383847748.

It is an arithmetic number, because the mean of its divisors is an integer number (8444279714976).

Almost surely, 2^{120001011202111} is an apocalyptic number.

120001011202111 is a deficient number, since it is larger than the sum of its proper divisors (15107464237505).

120001011202111 is a wasteful number, since it uses less digits than its factorization.

120001011202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767383302.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 120001011202111 its reverse (111202110100021), we get a palindrome (231203121302132).

The spelling of 120001011202111 in words is "one hundred twenty trillion, one billion, eleven million, two hundred two thousand, one hundred eleven".