1021223130101 has 8 divisors (see below), whose sum is σ = 1021831042104. Its totient is φ = 1020615318720.

The previous prime is 1021223130089. The next prime is 1021223130107. The reversal of 1021223130101 is 1010313221201.

It can be written as a sum of positive squares in 4 ways, for example, as 133755507076 + 887467623025 = 365726^2 + 942055^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021223130101 - 2¹⁴ = 1021223113717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021223130101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021223130107) 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 7 ways as a sum of consecutive naturals, for example, 31258691 + ... + 31291343.

It is an arithmetic number, because the mean of its divisors is an integer number (127728880263).

Almost surely, 2^{1021223130101} is an apocalyptic number.

It is an amenable number.

1021223130101 is a deficient number, since it is larger than the sum of its proper divisors (607912003).

1021223130101 is a wasteful number, since it uses less digits than its factorization.

1021223130101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50311.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1021223130101 its reverse (1010313221201), we get a palindrome (2031536351302).

The spelling of 1021223130101 in words is "one trillion, twenty-one billion, two hundred twenty-three million, one hundred thirty thousand, one hundred one".