212021123234 has 16 divisors (see below), whose sum is σ = 335069966400. Its totient is φ = 100341126864.

The previous prime is 212021123231. The next prime is 212021123239. The reversal of 212021123234 is 432321120212.

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 7 ways as a sum of consecutive naturals, for example, 2455094 + ... + 2539985.

It is an arithmetic number, because the mean of its divisors is an integer number (20941872900).

Almost surely, 2^212021123234 is an apocalyptic number.

212021123234 is a deficient number, since it is larger than the sum of its proper divisors (123048843166).

212021123234 is a wasteful number, since it uses less digits than its factorization.

212021123234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4996217.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 212021123234 its reverse (432321120212), we get a palindrome (644342243446).

The spelling of 212021123234 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-three thousand, two hundred thirty-four".