21001302022 has 8 divisors (see below), whose sum is σ = 31537631736. Its totient is φ = 10488758112.

The previous prime is 21001302017. The next prime is 21001302029. The reversal of 21001302022 is 22020310012.

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

It is a super-2 number, since 2×21001302022² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21001301993 and 21001302011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21001302029) 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, 5944243 + ... + 5947774.

It is an arithmetic number, because the mean of its divisors is an integer number (3942203967).

Almost surely, 2^21001302022 is an apocalyptic number.

21001302022 is a deficient number, since it is larger than the sum of its proper divisors (10536329714).

21001302022 is a wasteful number, since it uses less digits than its factorization.

21001302022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11892902.

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

Adding to 21001302022 its reverse (22020310012), we get a palindrome (43021612034).

The spelling of 21001302022 in words is "twenty-one billion, one million, three hundred two thousand, twenty-two".