120100210001111 has 4 divisors (see below), whose sum is σ = 126421273685400. Its totient is φ = 113779146316824.

The previous prime is 120100210001089. The next prime is 120100210001159. The reversal of 120100210001111 is 111100012001021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120100210001111 - 2¹⁰ = 120100210000087 is a prime.

It is a super-3 number, since 3×120100210001111³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120100210001092 and 120100210001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120100210007111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3160531842116 + ... + 3160531842153.

It is an arithmetic number, because the mean of its divisors is an integer number (31605318421350).

Almost surely, 2^{120100210001111} is an apocalyptic number.

120100210001111 is a deficient number, since it is larger than the sum of its proper divisors (6321063684289).

120100210001111 is an equidigital number, since it uses as much as digits as its factorization.

120100210001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6321063684288.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 120100210001111 its reverse (111100012001021), we get a palindrome (231200222002132).

The spelling of 120100210001111 in words is "one hundred twenty trillion, one hundred billion, two hundred ten million, one thousand, one hundred eleven".