21212232101230 has 8 divisors (see below), whose sum is σ = 38182017782232. Its totient is φ = 8484892840488.

The previous prime is 21212232101219. The next prime is 21212232101279. The reversal of 21212232101230 is 3210123221212.

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

It is a congruent number.

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, 1060611605052 + ... + 1060611605071.

It is an arithmetic number, because the mean of its divisors is an integer number (4772752222779).

Almost surely, 2^{21212232101230} is an apocalyptic number.

21212232101230 is a deficient number, since it is larger than the sum of its proper divisors (16969785681002).

21212232101230 is a wasteful number, since it uses less digits than its factorization.

21212232101230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121223210130.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21212232101230 its reverse (3210123221212), we get a palindrome (24422355322442).

The spelling of 21212232101230 in words is "twenty-one trillion, two hundred twelve billion, two hundred thirty-two million, one hundred one thousand, two hundred thirty".