120121011012111 has 8 divisors (see below), whose sum is σ = 160166033562240. Its totient is φ = 80078331235032.

The previous prime is 120121011012083. The next prime is 120121011012181. The reversal of 120121011012111 is 111210110121021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120121011012111 - 2⁴² = 115722964501007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121011012181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585573621 + ... + 585778718.

It is an arithmetic number, because the mean of its divisors is an integer number (20020754195280).

Almost surely, 2^{120121011012111} is an apocalyptic number.

120121011012111 is a deficient number, since it is larger than the sum of its proper divisors (40045022550129).

120121011012111 is a wasteful number, since it uses less digits than its factorization.

120121011012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171386525.

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

Adding to 120121011012111 its reverse (111210110121021), we get a palindrome (231331121133132).

The spelling of 120121011012111 in words is "one hundred twenty trillion, one hundred twenty-one billion, eleven million, twelve thousand, one hundred eleven".