2111222201 has 8 divisors (see below), whose sum is σ = 2303487264. Its totient is φ = 1919013120.

The previous prime is 2111222137. The next prime is 2111222203. The reversal of 2111222201 is 1022221112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2111222201 - 2⁶ = 2111222137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111222203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124505 + ... + 140441.

It is an arithmetic number, because the mean of its divisors is an integer number (287935908).

Almost surely, 2^2111222201 is an apocalyptic number.

It is an amenable number.

2111222201 is a deficient number, since it is larger than the sum of its proper divisors (192265063).

2111222201 is a wasteful number, since it uses less digits than its factorization.

2111222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27991.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2111222201 is about 45948.0380538712. The cubic root of 2111222201 is about 1282.8562115869.

Adding to 2111222201 its reverse (1022221112), we get a palindrome (3133443313).

The spelling of 2111222201 in words is "two billion, one hundred eleven million, two hundred twenty-two thousand, two hundred one".