1021240522101 has 16 divisors (see below), whose sum is σ = 1364243844096. Its totient is φ = 679532413296.

The previous prime is 1021240522091. The next prime is 1021240522129. The reversal of 1021240522101 is 1012250421201.

It is not a de Polignac number, because 1021240522101 - 2⁹ = 1021240521589 is a prime.

It is a super-2 number, since 2×1021240522101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021240522901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15240196 + ... + 15307058.

It is an arithmetic number, because the mean of its divisors is an integer number (85265240256).

Almost surely, 2^{1021240522101} is an apocalyptic number.

It is an amenable number.

1021240522101 is a deficient number, since it is larger than the sum of its proper divisors (343003321995).

1021240522101 is an equidigital number, since it uses as much as digits as its factorization.

1021240522101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76472.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 1021240522101 its reverse (1012250421201), we get a palindrome (2033490943302).

The spelling of 1021240522101 in words is "one trillion, twenty-one billion, two hundred forty million, five hundred twenty-two thousand, one hundred one".