10211212101111 has 32 divisors (see below), whose sum is σ = 15660210336768. Its totient is φ = 5797383321600.

The previous prime is 10211212101107. The next prime is 10211212101229. The reversal of 10211212101111 is 11110121211201.

It is not a de Polignac number, because 10211212101111 - 2² = 10211212101107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211212102111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47372566 + ... + 47587628.

It is an arithmetic number, because the mean of its divisors is an integer number (489381573024).

Almost surely, 2^{10211212101111} is an apocalyptic number.

10211212101111 is a deficient number, since it is larger than the sum of its proper divisors (5448998235657).

10211212101111 is a wasteful number, since it uses less digits than its factorization.

10211212101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229631.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 10211212101111 its reverse (11110121211201), we get a palindrome (21321333312312).

The spelling of 10211212101111 in words is "ten trillion, two hundred eleven billion, two hundred twelve million, one hundred one thousand, one hundred eleven".