2112211201 has 4 divisors (see below), whose sum is σ = 2185046100. Its totient is φ = 2039376304.

The previous prime is 2112211159. The next prime is 2112211207. The reversal of 2112211201 is 1021122112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 919544976 + 1192666225 = 30324^2 + 34535^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112211201 - 2¹⁵ = 2112178433 is a prime.

It is a super-2 number, since 2×2112211201² = 8922872315259724802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112211207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36417406 + ... + 36417463.

It is an arithmetic number, because the mean of its divisors is an integer number (546261525).

Almost surely, 2^2112211201 is an apocalyptic number.

It is an amenable number.

2112211201 is a deficient number, since it is larger than the sum of its proper divisors (72834899).

2112211201 is an equidigital number, since it uses as much as digits as its factorization.

2112211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72834898.

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

The square root of 2112211201 is about 45958.7989507994. The cubic root of 2112211201 is about 1283.0564978997.

Adding to 2112211201 its reverse (1021122112), we get a palindrome (3133333313).

It can be divided in two parts, 21122 and 11201, that added together give a palindrome (32323).

The spelling of 2112211201 in words is "two billion, one hundred twelve million, two hundred eleven thousand, two hundred one".