120120000021111 has 64 divisors (see below), whose sum is σ = 180722248519680. Its totient is φ = 70516921628160.

The previous prime is 120120000021097. The next prime is 120120000021127. The reversal of 120120000021111 is 111120000021021.

It is not a de Polignac number, because 120120000021111 - 2⁵ = 120120000021079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120120000021211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 224204196 + ... + 224739318.

It is an arithmetic number, because the mean of its divisors is an integer number (2823785133120).

Almost surely, 2^{120120000021111} is an apocalyptic number.

120120000021111 is a deficient number, since it is larger than the sum of its proper divisors (60602248498569).

120120000021111 is a wasteful number, since it uses less digits than its factorization.

120120000021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538036.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 120120000021111 its reverse (111120000021021), we get a palindrome (231240000042132).

The spelling of 120120000021111 in words is "one hundred twenty trillion, one hundred twenty billion, twenty-one thousand, one hundred eleven".