21230201022 has 8 divisors (see below), whose sum is σ = 42460402056. Its totient is φ = 7076733672.

The previous prime is 21230201011. The next prime is 21230201023. The reversal of 21230201022 is 22010203212.

It is a happy number.

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

21230201022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21230200992 and 21230201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230201023) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1769183413 + ... + 1769183424.

It is an arithmetic number, because the mean of its divisors is an integer number (5307550257).

Almost surely, 2^21230201022 is an apocalyptic number.

21230201022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21230201022 is a wasteful number, since it uses less digits than its factorization.

21230201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3538366842.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 21230201022 its reverse (22010203212), we get a palindrome (43240404234).

The spelling of 21230201022 in words is "twenty-one billion, two hundred thirty million, two hundred one thousand, twenty-two".