21301212022 has 8 divisors (see below), whose sum is σ = 31953403872. Its totient is φ = 10650077400.

The previous prime is 21301211977. The next prime is 21301212059. The reversal of 21301212022 is 22021210312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21301211987 and 21301212005.

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, 211854 + ... + 295777.

It is an arithmetic number, because the mean of its divisors is an integer number (3994175484).

Almost surely, 2^21301212022 is an apocalyptic number.

21301212022 is a deficient number, since it is larger than the sum of its proper divisors (10652191850).

21301212022 is a wasteful number, since it uses less digits than its factorization.

21301212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528614.

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

Adding to 21301212022 its reverse (22021210312), we get a palindrome (43322422334).

The spelling of 21301212022 in words is "twenty-one billion, three hundred one million, two hundred twelve thousand, twenty-two".