212021123233 has 16 divisors (see below), whose sum is σ = 213640156800. Its totient is φ = 210410060800.

The previous prime is 212021123231. The next prime is 212021123239. The reversal of 212021123233 is 332321120212.

It is a cyclic number.

It is not a de Polignac number, because 212021123233 - 2¹ = 212021123231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021123231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132429633 + ... + 132431233.

It is an arithmetic number, because the mean of its divisors is an integer number (13352509800).

Almost surely, 2^212021123233 is an apocalyptic number.

It is an amenable number.

212021123233 is a deficient number, since it is larger than the sum of its proper divisors (1619033567).

212021123233 is a wasteful number, since it uses less digits than its factorization.

212021123233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212021123233 its reverse (332321120212), we get a palindrome (544342243445).

The spelling of 212021123233 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-three thousand, two hundred thirty-three".