120201001221 has 16 divisors (see below), whose sum is σ = 184392720000. Its totient is φ = 68225302848.

The previous prime is 120201001171. The next prime is 120201001241. The reversal of 120201001221 is 122100102021.

It is not a de Polignac number, because 120201001221 - 2⁶ = 120201001157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120201001197 and 120201001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120201001241) 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, 19204446 + ... + 19210703.

It is an arithmetic number, because the mean of its divisors is an integer number (11524545000).

Almost surely, 2^120201001221 is an apocalyptic number.

It is an amenable number.

120201001221 is a deficient number, since it is larger than the sum of its proper divisors (64191718779).

120201001221 is a wasteful number, since it uses less digits than its factorization.

120201001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38415308.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120201001221 its reverse (122100102021), we get a palindrome (242301103242).

The spelling of 120201001221 in words is "one hundred twenty billion, two hundred one million, one thousand, two hundred twenty-one".