212021113343 has 32 divisors (see below), whose sum is σ = 239699281920. Its totient is φ = 186193054080.

The previous prime is 212021113321. The next prime is 212021113351. The reversal of 212021113343 is 343311120212.

It is a cyclic number.

It is not a de Polignac number, because 212021113343 - 2³⁰ = 210947371519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021112343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13735796 + ... + 13751222.

It is an arithmetic number, because the mean of its divisors is an integer number (7490602560).

Almost surely, 2^212021113343 is an apocalyptic number.

212021113343 is a deficient number, since it is larger than the sum of its proper divisors (27678168577).

212021113343 is a wasteful number, since it uses less digits than its factorization.

212021113343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16047.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 212021113343 its reverse (343311120212), we get a palindrome (555332233555).

The spelling of 212021113343 in words is "two hundred twelve billion, twenty-one million, one hundred thirteen thousand, three hundred forty-three".