213021032222 has 4 divisors (see below), whose sum is σ = 319531548336. Its totient is φ = 106510516110.

The previous prime is 213021032173. The next prime is 213021032239. The reversal of 213021032222 is 222230120312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 213021032194 and 213021032203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53255258054 + ... + 53255258057.

It is an arithmetic number, because the mean of its divisors is an integer number (79882887084).

Almost surely, 2^213021032222 is an apocalyptic number.

213021032222 is a deficient number, since it is larger than the sum of its proper divisors (106510516114).

213021032222 is a wasteful number, since it uses less digits than its factorization.

213021032222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106510516113.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 213021032222 its reverse (222230120312), we get a palindrome (435251152534).

The spelling of 213021032222 in words is "two hundred thirteen billion, twenty-one million, thirty-two thousand, two hundred twenty-two".