1022121201013 has 12 divisors (see below), whose sum is σ = 1124898345900. Its totient is φ = 928035130880.

The previous prime is 1022121201011. The next prime is 1022121201089. The reversal of 1022121201013 is 3101021212201.

It can be written as a sum of positive squares in 2 ways, for example, as 445338671569 + 576782529444 = 667337^2 + 759462^2 .

It is not a de Polignac number, because 1022121201013 - 2¹ = 1022121201011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022121201011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5202988 + ... + 5395861.

It is an arithmetic number, because the mean of its divisors is an integer number (93741528825).

Almost surely, 2^{1022121201013} is an apocalyptic number.

It is an amenable number.

1022121201013 is a deficient number, since it is larger than the sum of its proper divisors (102777144887).

1022121201013 is a wasteful number, since it uses less digits than its factorization.

1022121201013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10599668 (or 10599657 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1022121201013 its reverse (3101021212201), we get a palindrome (4123142413214).

The spelling of 1022121201013 in words is "one trillion, twenty-two billion, one hundred twenty-one million, two hundred one thousand, thirteen".