10211210121212 has 12 divisors (see below), whose sum is σ = 18646557612816. Its totient is φ = 4883622231840.

The previous prime is 10211210121163. The next prime is 10211210121223. The reversal of 10211210121212 is 21212101211201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55495707089 + ... + 55495707272.

It is an arithmetic number, because the mean of its divisors is an integer number (1553879801068).

Almost surely, 2^{10211210121212} is an apocalyptic number.

It is an amenable number.

10211210121212 is a deficient number, since it is larger than the sum of its proper divisors (8435347491604).

10211210121212 is a wasteful number, since it uses less digits than its factorization.

10211210121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110991414388 (or 110991414386 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10211210121212 its reverse (21212101211201), we get a palindrome (31423311332413).

The spelling of 10211210121212 in words is "ten trillion, two hundred eleven billion, two hundred ten million, one hundred twenty-one thousand, two hundred twelve".