120201011221111 has 16 divisors (see below), whose sum is σ = 127029034690560. Its totient is φ = 113506804382400.

The previous prime is 120201011221073. The next prime is 120201011221127. The reversal of 120201011221111 is 111122110102021.

It is a cyclic number.

It is not a de Polignac number, because 120201011221111 - 2⁹ = 120201011220599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120201011225111) 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, 12568651 + ... + 19959283.

It is an arithmetic number, because the mean of its divisors is an integer number (7939314668160).

Almost surely, 2^{120201011221111} is an apocalyptic number.

120201011221111 is a deficient number, since it is larger than the sum of its proper divisors (6828023469449).

120201011221111 is an equidigital number, since it uses as much as digits as its factorization.

120201011221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7399686.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 120201011221111 its reverse (111122110102021), we get a palindrome (231323121323132).

The spelling of 120201011221111 in words is "one hundred twenty trillion, two hundred one billion, eleven million, two hundred twenty-one thousand, one hundred eleven".