10101211211212 has 24 divisors (see below), whose sum is σ = 19571953343040. Its totient is φ = 4522930391760.

The previous prime is 10101211211129. The next prime is 10101211211227. The reversal of 10101211211212 is 21211211210101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1713228262 + ... + 1713234157.

It is an arithmetic number, because the mean of its divisors is an integer number (815498055960).

Almost surely, 2^{10101211211212} is an apocalyptic number.

It is an amenable number.

10101211211212 is a deficient number, since it is larger than the sum of its proper divisors (9470742131828).

10101211211212 is a wasteful number, since it uses less digits than its factorization.

10101211211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426462501 (or 3426462499 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 10101211211212 its reverse (21211211210101), we get a palindrome (31312422421313).

The spelling of 10101211211212 in words is "ten trillion, one hundred one billion, two hundred eleven million, two hundred eleven thousand, two hundred twelve".