1021001221119 has 32 divisors (see below), whose sum is σ = 1506378290688. Its totient is φ = 609923888000.

The previous prime is 1021001221117. The next prime is 1021001221127. The reversal of 1021001221119 is 9111221001201.

It is a cyclic number.

It is not a de Polignac number, because 1021001221119 - 2¹ = 1021001221117 is a prime.

It is a super-2 number, since 2×1021001221119² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021001221095 and 1021001221104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021001221117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9913549 + ... + 10016009.

It is an arithmetic number, because the mean of its divisors is an integer number (47074321584).

Almost surely, 2^{1021001221119} is an apocalyptic number.

1021001221119 is a deficient number, since it is larger than the sum of its proper divisors (485377069569).

1021001221119 is a wasteful number, since it uses less digits than its factorization.

1021001221119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106799.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 1021001221119 in words is "one trillion, twenty-one billion, one million, two hundred twenty-one thousand, one hundred nineteen".