21023212202 has 8 divisors (see below), whose sum is σ = 31537118016. Its totient is φ = 10510839532.

The previous prime is 21023212201. The next prime is 21023212211. The reversal of 21023212202 is 20221232012.

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

It is not an unprimeable number, because it can be changed into a prime (21023212201) 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, 348368 + ... + 404235.

It is an arithmetic number, because the mean of its divisors is an integer number (3942139752).

Almost surely, 2^21023212202 is an apocalyptic number.

21023212202 is a deficient number, since it is larger than the sum of its proper divisors (10513905814).

21023212202 is a wasteful number, since it uses less digits than its factorization.

21023212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766572.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21023212202 its reverse (20221232012), we get a palindrome (41244444214).

The spelling of 21023212202 in words is "twenty-one billion, twenty-three million, two hundred twelve thousand, two hundred two".