21022230310 has 16 divisors (see below), whose sum is σ = 37849497552. Its totient is φ = 8406784800.

The previous prime is 21022230263. The next prime is 21022230329. The reversal of 21022230310 is 1303222012.

It is a super-2 number, since 2×21022230310² (a number of 21 digits) 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 7 ways as a sum of consecutive naturals, for example, 221196 + ... + 301615.

It is an arithmetic number, because the mean of its divisors is an integer number (2365593597).

Almost surely, 2^21022230310 is an apocalyptic number.

21022230310 is a deficient number, since it is larger than the sum of its proper divisors (16827267242).

21022230310 is a wasteful number, since it uses less digits than its factorization.

21022230310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526839.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21022230310 its reverse (1303222012), we get a palindrome (22325452322).

The spelling of 21022230310 in words is "twenty-one billion, twenty-two million, two hundred thirty thousand, three hundred ten".