212021102223 has 48 divisors (see below), whose sum is σ = 353986913280. Its totient is φ = 119778559488.

The previous prime is 212021102219. The next prime is 212021102233. The reversal of 212021102223 is 322201120212.

It is not a de Polignac number, because 212021102223 - 2² = 212021102219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212021102196 and 212021102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021102233) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5891398 + ... + 5927276.

It is an arithmetic number, because the mean of its divisors is an integer number (7374727360).

Almost surely, 2^212021102223 is an apocalyptic number.

212021102223 is a deficient number, since it is larger than the sum of its proper divisors (141965811057).

212021102223 is a wasteful number, since it uses less digits than its factorization.

212021102223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36956 (or 36953 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212021102223 its reverse (322201120212), we get a palindrome (534222222435).

The spelling of 212021102223 in words is "two hundred twelve billion, twenty-one million, one hundred two thousand, two hundred twenty-three".