10211122221212 has 24 divisors (see below), whose sum is σ = 19686970123632. Its totient is φ = 4595464544000.

The previous prime is 10211122221187. The next prime is 10211122221221. The reversal of 10211122221212 is 21212222111201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1148861693 + ... + 1148870580.

It is an arithmetic number, because the mean of its divisors is an integer number (820290421818).

Almost surely, 2^{10211122221212} is an apocalyptic number.

It is an amenable number.

10211122221212 is a deficient number, since it is larger than the sum of its proper divisors (9475847902420).

10211122221212 is a wasteful number, since it uses less digits than its factorization.

10211122221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297732389 (or 2297732387 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 10211122221212 its reverse (21212222111201), we get a palindrome (31423344332413).

The spelling of 10211122221212 in words is "ten trillion, two hundred eleven billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred twelve".