2102221331 has 16 divisors (see below), whose sum is σ = 2470583808. Its totient is φ = 1751208000.

The previous prime is 2102221273. The next prime is 2102221337. The reversal of 2102221331 is 1331222012.

It is a cyclic number.

It is not a de Polignac number, because 2102221331 - 2¹⁴ = 2102204947 is a prime.

It is a super-2 number, since 2×2102221331² = 8838669049022823122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2102221337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61556 + ... + 89406.

It is an arithmetic number, because the mean of its divisors is an integer number (154411488).

Almost surely, 2^2102221331 is an apocalyptic number.

2102221331 is a deficient number, since it is larger than the sum of its proper divisors (368362477).

2102221331 is a wasteful number, since it uses less digits than its factorization.

2102221331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28162.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2102221331 is about 45849.9872519066. The cubic root of 2102221331 is about 1281.0305281313.

Adding to 2102221331 its reverse (1331222012), we get a palindrome (3433443343).

The spelling of 2102221331 in words is "two billion, one hundred two million, two hundred twenty-one thousand, three hundred thirty-one".