100223121012 has 24 divisors (see below), whose sum is σ = 267261656256. Its totient is φ = 28635177408.

The previous prime is 100223120969. The next prime is 100223121013. The reversal of 100223121012 is 210121322001.

It is a junction number, because it is equal to n+sod(n) for n = 100223120982 and 100223121000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100223121013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596566113 + ... + 596566280.

It is an arithmetic number, because the mean of its divisors is an integer number (11135902344).

Almost surely, 2^100223121012 is an apocalyptic number.

100223121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100223121012 is an abundant number, since it is smaller than the sum of its proper divisors (167038535244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100223121012 is a wasteful number, since it uses less digits than its factorization.

100223121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193132407 (or 1193132405 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 100223121012 its reverse (210121322001), we get a palindrome (310344443013).

The spelling of 100223121012 in words is "one hundred billion, two hundred twenty-three million, one hundred twenty-one thousand, twelve".