21334022212 has 12 divisors (see below), whose sum is σ = 37558100160. Its totient is φ = 10603136456.

The previous prime is 21334022197. The next prime is 21334022219. The reversal of 21334022212 is 21222043312.

It is not an unprimeable number, because it can be changed into a prime (21334022219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15967912 + ... + 15969247.

It is an arithmetic number, because the mean of its divisors is an integer number (3129841680).

Almost surely, 2^21334022212 is an apocalyptic number.

It is an amenable number.

21334022212 is a deficient number, since it is larger than the sum of its proper divisors (16224077948).

21334022212 is a wasteful number, since it uses less digits than its factorization.

21334022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31937330 (or 31937328 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21334022212 its reverse (21222043312), we get a palindrome (42556065524).

The spelling of 21334022212 in words is "twenty-one billion, three hundred thirty-four million, twenty-two thousand, two hundred twelve".