2201121012 has 12 divisors (see below), whose sum is σ = 5135949056. Its totient is φ = 733707000.

The previous prime is 2201121007. The next prime is 2201121047. The reversal of 2201121012 is 2101211022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 183426751 = 2201121012 / (2 + 2 + 0 + 1 + 1 + 2 + 1 + 0 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91713364 + ... + 91713387.

Almost surely, 2^2201121012 is an apocalyptic number.

It is an amenable number.

2201121012 is an abundant number, since it is smaller than the sum of its proper divisors (2934828044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2201121012 is a wasteful number, since it uses less digits than its factorization.

2201121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183426758 (or 183426756 counting only the distinct ones).

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

The square root of 2201121012 is about 46916.1061044073. The cubic root of 2201121012 is about 1300.8123151924.

Adding to 2201121012 its reverse (2101211022), we get a palindrome (4302332034).

The spelling of 2201121012 in words is "two billion, two hundred one million, one hundred twenty-one thousand, twelve".