10022221212 has 24 divisors (see below), whose sum is σ = 23424240000. Its totient is φ = 3335160816.

The previous prime is 10022221193. The next prime is 10022221217. The reversal of 10022221212 is 21212222001.

It is a junction number, because it is equal to n+sod(n) for n = 10022221191 and 10022221200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10022221217) 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, 689962 + ... + 704337.

It is an arithmetic number, because the mean of its divisors is an integer number (976010000).

Almost surely, 2^10022221212 is an apocalyptic number.

10022221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10022221212 is an abundant number, since it is smaller than the sum of its proper divisors (13402018788).

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

10022221212 is a wasteful number, since it uses less digits than its factorization.

10022221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394905 (or 1394903 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10022221212 its reverse (21212222001), we get a palindrome (31234443213).

The spelling of 10022221212 in words is "ten billion, twenty-two million, two hundred twenty-one thousand, two hundred twelve".