1022121120111 has 64 divisors (see below), whose sum is σ = 1704529225728. Its totient is φ = 530466951168.

The previous prime is 1022121120043. The next prime is 1022121120127. The reversal of 1022121120111 is 1110211212201.

It is a happy number.

It is not a de Polignac number, because 1022121120111 - 2⁷ = 1022121119983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022121120011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4105390 + ... + 4347236.

It is an arithmetic number, because the mean of its divisors is an integer number (26633269152).

Almost surely, 2^{1022121120111} is an apocalyptic number.

1022121120111 is a deficient number, since it is larger than the sum of its proper divisors (682408105617).

1022121120111 is a wasteful number, since it uses less digits than its factorization.

1022121120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242120.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1022121120111 its reverse (1110211212201), we get a palindrome (2132332332312).

The spelling of 1022121120111 in words is "one trillion, twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, one hundred eleven".