120111000021111 has 32 divisors (see below), whose sum is σ = 175117426361856. Its totient is φ = 72623694528000.

The previous prime is 120111000021073. The next prime is 120111000021113. The reversal of 120111000021111 is 111120000111021.

It is a de Polignac number, because none of the positive numbers 2^k-120111000021111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120111000021113) 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, 21811251 + ... + 26757291.

It is an arithmetic number, because the mean of its divisors is an integer number (5472419573808).

Almost surely, 2^{120111000021111} is an apocalyptic number.

120111000021111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120111000021111 is a deficient number, since it is larger than the sum of its proper divisors (55006426340745).

120111000021111 is a wasteful number, since it uses less digits than its factorization.

120111000021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4947783.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 120111000021111 its reverse (111120000111021), we get a palindrome (231231000132132).

The spelling of 120111000021111 in words is "one hundred twenty trillion, one hundred eleven billion, twenty-one thousand, one hundred eleven".