2221028310 has 32 divisors (see below), whose sum is σ = 5342641920. Its totient is φ = 590921568.

The previous prime is 2221028309. The next prime is 2221028321. The reversal of 2221028310 is 138201222.

It is a happy number.

It is a super-2 number, since 2×2221028310² = 9865933507642912200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71152 + ... + 97491.

It is an arithmetic number, because the mean of its divisors is an integer number (166957560).

Almost surely, 2^2221028310 is an apocalyptic number.

2221028310 is an abundant number, since it is smaller than the sum of its proper divisors (3121613610).

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

2221028310 is a wasteful number, since it uses less digits than its factorization.

2221028310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169092.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2221028310 is about 47127.7870263394. The cubic root of 2221028310 is about 1304.7221381082.

Adding to 2221028310 its reverse (138201222), we get a palindrome (2359229532).

The spelling of 2221028310 in words is "two billion, two hundred twenty-one million, twenty-eight thousand, three hundred ten".