2221313402 has 48 divisors (see below), whose sum is σ = 4227382656. Its totient is φ = 856812000.

The previous prime is 2221313399. The next prime is 2221313407. The reversal of 2221313402 is 2043131222.

It is not an unprimeable number, because it can be changed into a prime (2221313407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164603 + ... + 177585.

It is an arithmetic number, because the mean of its divisors is an integer number (88070472).

Almost surely, 2^2221313402 is an apocalyptic number.

2221313402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2221313402 is a deficient number, since it is larger than the sum of its proper divisors (2006069254).

2221313402 is a wasteful number, since it uses less digits than its factorization.

2221313402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13115 (or 13104 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2221313402 is about 47130.8115992076. The cubic root of 2221313402 is about 1304.7779605889. Note that the first 3 decimals are identical.

Adding to 2221313402 its reverse (2043131222), we get a palindrome (4264444624).

The spelling of 2221313402 in words is "two billion, two hundred twenty-one million, three hundred thirteen thousand, four hundred two".