120101200121221 has 16 divisors (see below), whose sum is σ = 131311845580608. Its totient is φ = 108939434716800.

The previous prime is 120101200121219. The next prime is 120101200121233. The reversal of 120101200121221 is 122121002101021.

It is a cyclic number.

It is not a de Polignac number, because 120101200121221 - 2¹ = 120101200121219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120101200121195 and 120101200121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120101200121251) 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, 11717886 + ... + 19429648.

It is an arithmetic number, because the mean of its divisors is an integer number (8206990348788).

Almost surely, 2^{120101200121221} is an apocalyptic number.

120101200121221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120101200121221 is a deficient number, since it is larger than the sum of its proper divisors (11210645459387).

120101200121221 is a wasteful number, since it uses less digits than its factorization.

120101200121221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7714932.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 120101200121221 its reverse (122121002101021), we get a palindrome (242222202222242).

The spelling of 120101200121221 in words is "one hundred twenty trillion, one hundred one billion, two hundred million, one hundred twenty-one thousand, two hundred twenty-one".