2012201121 has 36 divisors (see below), whose sum is σ = 3160609872. Its totient is φ = 1135404144.

The previous prime is 2012201119. The next prime is 2012201123. The reversal of 2012201121 is 1211022102.

It is an interprime number because it is at equal distance from previous prime (2012201119) and next prime (2012201123).

It is not a de Polignac number, because 2012201121 - 2¹ = 2012201119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012201097 and 2012201106.

It is not an unprimeable number, because it can be changed into a prime (2012201123) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1011690 + ... + 1013676.

Almost surely, 2^2012201121 is an apocalyptic number.

2012201121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2012201121 is a deficient number, since it is larger than the sum of its proper divisors (1148408751).

2012201121 is an equidigital number, since it uses as much as digits as its factorization.

2012201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170 (or 2080 counting only the distinct ones).

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

The square root of 2012201121 is about 44857.5648135295. The cubic root of 2012201121 is about 1262.4779323137.

Adding to 2012201121 its reverse (1211022102), we get a palindrome (3223223223).

The spelling of 2012201121 in words is "two billion, twelve million, two hundred one thousand, one hundred twenty-one".