1022121020011 has 32 divisors (see below), whose sum is σ = 1332729151488. Its totient is φ = 760720273920.

The previous prime is 1022121019879. The next prime is 1022121020087. The reversal of 1022121020011 is 1100201212201.

It is a cyclic number.

It is not a de Polignac number, because 1022121020011 - 2¹¹ = 1022121017963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1022121019973 and 1022121020000.

It is not an unprimeable number, because it can be changed into a prime (1022121020411) 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 31 ways as a sum of consecutive naturals, for example, 2638966 + ... + 3001396.

It is an arithmetic number, because the mean of its divisors is an integer number (41647785984).

Almost surely, 2^{1022121020011} is an apocalyptic number.

1022121020011 is a deficient number, since it is larger than the sum of its proper divisors (310608131477).

1022121020011 is a wasteful number, since it uses less digits than its factorization.

1022121020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364291.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1022121020011 its reverse (1100201212201), we get a palindrome (2122322232212).

The spelling of 1022121020011 in words is "one trillion, twenty-two billion, one hundred twenty-one million, twenty thousand, eleven".