21022101032 has 16 divisors (see below), whose sum is σ = 39429618900. Its totient is φ = 10507536000.

The previous prime is 21022101017. The next prime is 21022101091. The reversal of 21022101032 is 23010122012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21000067396 + 22033636 = 144914^2 + 4694^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21022100998 and 21022101016.

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, 413807 + ... + 461822.

Almost surely, 2^21022101032 is an apocalyptic number.

It is an amenable number.

21022101032 is a deficient number, since it is larger than the sum of its proper divisors (18407517868).

21022101032 is a wasteful number, since it uses less digits than its factorization.

21022101032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878636 (or 878632 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21022101032 its reverse (23010122012), we get a palindrome (44032223044).

The spelling of 21022101032 in words is "twenty-one billion, twenty-two million, one hundred one thousand, thirty-two".