10223121212 has 12 divisors (see below), whose sum is σ = 18064156656. Its totient is φ = 5061933600.

The previous prime is 10223121197. The next prime is 10223121217. The reversal of 10223121212 is 21212132201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10223121217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12406289 + ... + 12407112.

It is an arithmetic number, because the mean of its divisors is an integer number (1505346388).

Almost surely, 2^10223121212 is an apocalyptic number.

It is an amenable number.

10223121212 is a deficient number, since it is larger than the sum of its proper divisors (7841035444).

10223121212 is a wasteful number, since it uses less digits than its factorization.

10223121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24813508 (or 24813506 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 10223121212 its reverse (21212132201), we get a palindrome (31435253413).

The spelling of 10223121212 in words is "ten billion, two hundred twenty-three million, one hundred twenty-one thousand, two hundred twelve".