212021132223 has 8 divisors (see below), whose sum is σ = 282706480000. Its totient is φ = 141341602968.

The previous prime is 212021132201. The next prime is 212021132243. The reversal of 212021132223 is 322231120212.

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

It is not a de Polignac number, because 212021132223 - 2⁸ = 212021131967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212021132223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021132243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1368883 + ... + 1515876.

It is an arithmetic number, because the mean of its divisors is an integer number (35338310000).

Almost surely, 2^212021132223 is an apocalyptic number.

212021132223 is a deficient number, since it is larger than the sum of its proper divisors (70685347777).

212021132223 is a wasteful number, since it uses less digits than its factorization.

212021132223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909261.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212021132223 its reverse (322231120212), we get a palindrome (534252252435).

The spelling of 212021132223 in words is "two hundred twelve billion, twenty-one million, one hundred thirty-two thousand, two hundred twenty-three".