1211122110022 has 32 divisors (see below), whose sum is σ = 2058317282304. Its totient is φ = 529483197600.

The previous prime is 1211122109971. The next prime is 1211122110047. The reversal of 1211122110022 is 2200112211121.

It is a junction number, because it is equal to n+sod(n) for n = 1211122109978 and 1211122110005.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 5336193 + ... + 5558524.

It is an arithmetic number, because the mean of its divisors is an integer number (64322415072).

Almost surely, 2^{1211122110022} is an apocalyptic number.

1211122110022 is a deficient number, since it is larger than the sum of its proper divisors (847195172282).

1211122110022 is a wasteful number, since it uses less digits than its factorization.

1211122110022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10894924.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1211122110022 its reverse (2200112211121), we get a palindrome (3411234321143).

The spelling of 1211122110022 in words is "one trillion, two hundred eleven billion, one hundred twenty-two million, one hundred ten thousand, twenty-two".