120201112101221 has 8 divisors (see below), whose sum is σ = 128583845815320. Its totient is φ = 111964165060608.

The previous prime is 120201112101211. The next prime is 120201112101241. The reversal of 120201112101221 is 122101211102021.

It can be written as a sum of positive squares in 4 ways, for example, as 44380312041025 + 75820800060196 = 6661855^2 + 8707514^2 .

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 120201112101221 - 2¹⁸ = 120201111839077 is a prime.

It is a super-3 number, since 3×120201112101221³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120201112101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120201112101211) 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, 36446666666 + ... + 36446669963.

It is an arithmetic number, because the mean of its divisors is an integer number (16072980726915).

Almost surely, 2^{120201112101221} is an apocalyptic number.

It is an amenable number.

120201112101221 is a deficient number, since it is larger than the sum of its proper divisors (8382733714099).

120201112101221 is an equidigital number, since it uses as much as digits as its factorization.

120201112101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72893336743.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 120201112101221 its reverse (122101211102021), we get a palindrome (242302323203242).

The spelling of 120201112101221 in words is "one hundred twenty trillion, two hundred one billion, one hundred twelve million, one hundred one thousand, two hundred twenty-one".