201120101221 has 32 divisors (see below), whose sum is σ = 227669799168. Its totient is φ = 176274109440.

The previous prime is 201120101219. The next prime is 201120101227. The reversal of 201120101221 is 122101021102.

It is not a de Polignac number, because 201120101221 - 2¹ = 201120101219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201120101227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83416506 + ... + 83418916.

It is an arithmetic number, because the mean of its divisors is an integer number (7114681224).

Almost surely, 2^201120101221 is an apocalyptic number.

It is an amenable number.

201120101221 is a deficient number, since it is larger than the sum of its proper divisors (26549697947).

201120101221 is a wasteful number, since it uses less digits than its factorization.

201120101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4381.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201120101221 its reverse (122101021102), we get a palindrome (323221122323).

The spelling of 201120101221 in words is "two hundred one billion, one hundred twenty million, one hundred one thousand, two hundred twenty-one".