213122220322 has 16 divisors (see below), whose sum is σ = 356165569152. Its totient is φ = 94812592720.

The previous prime is 213122220317. The next prime is 213122220359. The reversal of 213122220322 is 223022221312.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 213122220293 and 213122220302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103056133 + ... + 103058200.

It is an arithmetic number, because the mean of its divisors is an integer number (22260348072).

Almost surely, 2^213122220322 is an apocalyptic number.

213122220322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213122220322 is a deficient number, since it is larger than the sum of its proper divisors (143043348830).

213122220322 is a wasteful number, since it uses less digits than its factorization.

213122220322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206114393.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 213122220322 its reverse (223022221312), we get a palindrome (436144441634).

The spelling of 213122220322 in words is "two hundred thirteen billion, one hundred twenty-two million, two hundred twenty thousand, three hundred twenty-two".