120121120101111 has 16 divisors (see below), whose sum is σ = 162189333312000. Its totient is φ = 79066832802048.

The previous prime is 120121120101109. The next prime is 120121120101113. The reversal of 120121120101111 is 111101021121021.

It is an interprime number because it is at equal distance from previous prime (120121120101109) and next prime (120121120101113).

It is not a de Polignac number, because 120121120101111 - 2¹ = 120121120101109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121120101113) 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, 122026215 + ... + 123006663.

It is an arithmetic number, because the mean of its divisors is an integer number (10136833332000).

Almost surely, 2^{120121120101111} is an apocalyptic number.

120121120101111 is a deficient number, since it is larger than the sum of its proper divisors (42068213210889).

120121120101111 is an equidigital number, since it uses as much as digits as its factorization.

120121120101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497478.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 120121120101111 its reverse (111101021121021), we get a palindrome (231222141222132).

The spelling of 120121120101111 in words is "one hundred twenty trillion, one hundred twenty-one billion, one hundred twenty million, one hundred one thousand, one hundred eleven".