1211122002022 has 16 divisors (see below), whose sum is σ = 1869676736400. Its totient is φ = 588059230752.

The previous prime is 1211122002011. The next prime is 1211122002023. The reversal of 1211122002022 is 2202002211121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1211122001987 and 1211122002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211122002023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40686897 + ... + 40716652.

It is an arithmetic number, because the mean of its divisors is an integer number (116854796025).

Almost surely, 2^{1211122002022} is an apocalyptic number.

1211122002022 is a deficient number, since it is larger than the sum of its proper divisors (658554734378).

1211122002022 is a wasteful number, since it uses less digits than its factorization.

1211122002022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81403767.

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

Adding to 1211122002022 its reverse (2202002211121), we get a palindrome (3413124213143).

The spelling of 1211122002022 in words is "one trillion, two hundred eleven billion, one hundred twenty-two million, two thousand, twenty-two".