120102211212111 has 32 divisors (see below), whose sum is σ = 180096699525120. Its totient is φ = 79093021537152.

The previous prime is 120102211212091. The next prime is 120102211212121. The reversal of 120102211212111 is 111212112201021.

It is a happy number.

120102211212111 is a `hidden beast` number, since 120 + 1 + 0 + 221 + 1 + 212 + 111 = 666.

It is not a de Polignac number, because 120102211212111 - 2¹⁸ = 120102210949967 is a prime.

It is a super-3 number, since 3×120102211212111³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102211212121) 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, 13459735 + ... + 20527271.

It is an arithmetic number, because the mean of its divisors is an integer number (5628021860160).

Almost surely, 2^{120102211212111} is an apocalyptic number.

120102211212111 is a deficient number, since it is larger than the sum of its proper divisors (59994488313009).

120102211212111 is an equidigital number, since it uses as much as digits as its factorization.

120102211212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7075212 (or 7075206 counting only the distinct ones).

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

Adding to 120102211212111 its reverse (111212112201021), we get a palindrome (231314323413132).

The spelling of 120102211212111 in words is "one hundred twenty trillion, one hundred two billion, two hundred eleven million, two hundred twelve thousand, one hundred eleven".