2123221310 has 128 divisors (see below), whose sum is σ = 4954521600. Its totient is φ = 638098560.

The previous prime is 2123221267. The next prime is 2123221351. The reversal of 2123221310 is 131223212.

It is a super-2 number, since 2×2123221310² = 9016137462476232200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 947171 + ... + 949409.

It is an arithmetic number, because the mean of its divisors is an integer number (38707200).

Almost surely, 2^2123221310 is an apocalyptic number.

2123221310 is an abundant number, since it is smaller than the sum of its proper divisors (2831300290).

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

2123221310 is a wasteful number, since it uses less digits than its factorization.

2123221310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326.

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

The square root of 2123221310 is about 46078.4256458486. The cubic root of 2123221310 is about 1285.2819883093.

Adding to 2123221310 its reverse (131223212), we get a palindrome (2254444522).

The spelling of 2123221310 in words is "two billion, one hundred twenty-three million, two hundred twenty-one thousand, three hundred ten".