21220102001122 has 16 divisors (see below), whose sum is σ = 32606626405752. Its totient is φ = 10351228567680.

The previous prime is 21220102001101. The next prime is 21220102001209. The reversal of 21220102001122 is 22110020102212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 592054841401 + 20628047159721 = 769451^2 + 4541811^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21220102001096 and 21220102001105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40824808 + ... + 41341324.

Almost surely, 2^{21220102001122} is an apocalyptic number.

21220102001122 is a deficient number, since it is larger than the sum of its proper divisors (11386524404630).

21220102001122 is a wasteful number, since it uses less digits than its factorization.

21220102001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017573.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21220102001122 its reverse (22110020102212), we get a palindrome (43330122103334).

The spelling of 21220102001122 in words is "twenty-one trillion, two hundred twenty billion, one hundred two million, one thousand, one hundred twenty-two".