21201030022 has 16 divisors (see below), whose sum is σ = 33307601760. Its totient is φ = 10101923392.

The previous prime is 21201029981. The next prime is 21201030077. The reversal of 21201030022 is 22003010212.

It is a junction number, because it is equal to n+sod(n) for n = 21201029984 and 21201030011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844303 + ... + 869050.

It is an arithmetic number, because the mean of its divisors is an integer number (2081725110).

Almost surely, 2^21201030022 is an apocalyptic number.

21201030022 is a deficient number, since it is larger than the sum of its proper divisors (12106571738).

21201030022 is a wasteful number, since it uses less digits than its factorization.

21201030022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713647.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 21201030022 its reverse (22003010212), we get a palindrome (43204040234).

The spelling of 21201030022 in words is "twenty-one billion, two hundred one million, thirty thousand, twenty-two".