1012220323011 has 16 divisors (see below), whose sum is σ = 1499660850720. Its totient is φ = 674779714560.

The previous prime is 1012220322991. The next prime is 1012220323019. The reversal of 1012220323011 is 1103230222101.

It is not a de Polignac number, because 1012220323011 - 2¹⁵ = 1012220290243 is a prime.

It is a super-2 number, since 2×1012220323011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1012220323019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385410 + ... + 1474103.

It is an arithmetic number, because the mean of its divisors is an integer number (93728803170).

Almost surely, 2^{1012220323011} is an apocalyptic number.

1012220323011 is a deficient number, since it is larger than the sum of its proper divisors (487440527709).

1012220323011 is a wasteful number, since it uses less digits than its factorization.

1012220323011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879683 (or 1879677 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1012220323011 its reverse (1103230222101), we get a palindrome (2115450545112).

The spelling of 1012220323011 in words is "one trillion, twelve billion, two hundred twenty million, three hundred twenty-three thousand, eleven".