212021101322 has 4 divisors (see below), whose sum is σ = 318031651986. Its totient is φ = 106010550660.

The previous prime is 212021101219. The next prime is 212021101363. The reversal of 212021101322 is 223101120212.

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

It can be written as a sum of positive squares in only one way, i.e., 171753053761 + 40268047561 = 414431^2 + 200669^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212021101322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53005275329 + ... + 53005275332.

Almost surely, 2^212021101322 is an apocalyptic number.

212021101322 is a deficient number, since it is larger than the sum of its proper divisors (106010550664).

212021101322 is a wasteful number, since it uses less digits than its factorization.

212021101322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106010550663.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 212021101322 its reverse (223101120212), we get a palindrome (435122221534).

The spelling of 212021101322 in words is "two hundred twelve billion, twenty-one million, one hundred one thousand, three hundred twenty-two".