21210112202 has 8 divisors (see below), whose sum is σ = 31816530912. Its totient is φ = 10604601900.

The previous prime is 21210112199. The next prime is 21210112223. The reversal of 21210112202 is 20221101212.

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

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, 165374 + ... + 264137.

It is an arithmetic number, because the mean of its divisors is an integer number (3977066364).

Almost surely, 2^21210112202 is an apocalyptic number.

21210112202 is a deficient number, since it is larger than the sum of its proper divisors (10606418710).

21210112202 is a wasteful number, since it uses less digits than its factorization.

21210112202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454204.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21210112202 its reverse (20221101212), we get a palindrome (41431213414).

The spelling of 21210112202 in words is "twenty-one billion, two hundred ten million, one hundred twelve thousand, two hundred two".