21022120302 has 8 divisors (see below), whose sum is σ = 42044240616. Its totient is φ = 7007373432.

The previous prime is 21022120297. The next prime is 21022120307. The reversal of 21022120302 is 20302122012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21022120297) and next prime (21022120307).

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

21022120302 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022120307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1751843353 + ... + 1751843364.

It is an arithmetic number, because the mean of its divisors is an integer number (5255530077).

Almost surely, 2^21022120302 is an apocalyptic number.

21022120302 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.

21022120302 is a wasteful number, since it uses less digits than its factorization.

21022120302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503686722.

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

Adding to 21022120302 its reverse (20302122012), we get a palindrome (41324242314).

The spelling of 21022120302 in words is "twenty-one billion, twenty-two million, one hundred twenty thousand, three hundred two".