21422333310 has 192 divisors, whose sum is σ = 61374454272. Its totient is φ = 4687200000.

The previous prime is 21422333299. The next prime is 21422333311. The reversal of 21422333310 is 1333322412.

It is a super-2 number, since 2×21422333310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21422333311) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20382285 + ... + 20383335.

It is an arithmetic number, because the mean of its divisors is an integer number (319658616).

Almost surely, 2^21422333310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21422333310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30687227136).

21422333310 is an abundant number, since it is smaller than the sum of its proper divisors (39952120962).

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

21422333310 is a wasteful number, since it uses less digits than its factorization.

21422333310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21422333310 its reverse (1333322412), we get a palindrome (22755655722).

The spelling of 21422333310 in words is "twenty-one billion, four hundred twenty-two million, three hundred thirty-three thousand, three hundred ten".