10122222121212 has 48 divisors (see below), whose sum is σ = 23702432947200. Its totient is φ = 3362107250880.

The previous prime is 10122222121157. The next prime is 10122222121213. The reversal of 10122222121212 is 21212122222101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122222121213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2540989 + ... + 5167307.

It is an arithmetic number, because the mean of its divisors is an integer number (493800686400).

Almost surely, 2^{10122222121212} is an apocalyptic number.

10122222121212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10122222121212 is an abundant number, since it is smaller than the sum of its proper divisors (13580210825988).

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

10122222121212 is a wasteful number, since it uses less digits than its factorization.

10122222121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627466 (or 2627464 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 10122222121212 its reverse (21212122222101), we get a palindrome (31334344343313).

The spelling of 10122222121212 in words is "ten trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred twelve".