21010222132 has 12 divisors (see below), whose sum is σ = 36768959136. Its totient is φ = 10504805240.

The previous prime is 21010222127. The next prime is 21010222153. The reversal of 21010222132 is 23122201012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158007 + ... + 258817.

It is an arithmetic number, because the mean of its divisors is an integer number (3064079928).

Almost surely, 2^21010222132 is an apocalyptic number.

It is an amenable number.

21010222132 is a deficient number, since it is larger than the sum of its proper divisors (15758737004).

21010222132 is a wasteful number, since it uses less digits than its factorization.

21010222132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152918 (or 152916 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21010222132 its reverse (23122201012), we get a palindrome (44132423144).

The spelling of 21010222132 in words is "twenty-one billion, ten million, two hundred twenty-two thousand, one hundred thirty-two".