120121202212111 has 8 divisors (see below), whose sum is σ = 122508457063200. Its totient is φ = 117738422067552.

The previous prime is 120121202212093. The next prime is 120121202212211. The reversal of 120121202212111 is 111212202121021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 120121202212111 - 2¹⁵ = 120121202179343 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 (120121202212211) 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, 1118622411 + ... + 1118729788.

It is an arithmetic number, because the mean of its divisors is an integer number (15313557132900).

Almost surely, 2^{120121202212111} is an apocalyptic number.

120121202212111 is a deficient number, since it is larger than the sum of its proper divisors (2387254851089).

120121202212111 is a wasteful number, since it uses less digits than its factorization.

120121202212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237353265.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 120121202212111 its reverse (111212202121021), we get a palindrome (231333404333132).

The spelling of 120121202212111 in words is "one hundred twenty trillion, one hundred twenty-one billion, two hundred two million, two hundred twelve thousand, one hundred eleven".