212221012001122 has 8 divisors (see below), whose sum is σ = 318341448269676. Its totient is φ = 106107195911232.

The previous prime is 212221012001041. The next prime is 212221012001143. The reversal of 212221012001122 is 221100210122212.

It can be written as a sum of positive squares in 2 ways, for example, as 139125539932201 + 73095472068921 = 11795149^2 + 8549589^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212221012001122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1654964523 + ... + 1655092750.

Almost surely, 2^{212221012001122} is an apocalyptic number.

212221012001122 is a deficient number, since it is larger than the sum of its proper divisors (106120436268554).

212221012001122 is a wasteful number, since it uses less digits than its factorization.

212221012001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310089332.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212221012001122 its reverse (221100210122212), we get a palindrome (433321222123334).

The spelling of 212221012001122 in words is "two hundred twelve trillion, two hundred twenty-one billion, twelve million, one thousand, one hundred twenty-two".