10111212212 has 48 divisors (see below), whose sum is σ = 18539781120. Its totient is φ = 4821024000.

The previous prime is 10111212211. The next prime is 10111212269. The reversal of 10111212212 is 21221211101.

It is a super-2 number, since 2×10111212212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111212211) 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, 1304693 + ... + 1312419.

It is an arithmetic number, because the mean of its divisors is an integer number (386245440).

Almost surely, 2^10111212212 is an apocalyptic number.

It is an amenable number.

10111212212 is a deficient number, since it is larger than the sum of its proper divisors (8428568908).

10111212212 is a wasteful number, since it uses less digits than its factorization.

10111212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7952 (or 7950 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10111212212 its reverse (21221211101), we get a palindrome (31332423313).

The spelling of 10111212212 in words is "ten billion, one hundred eleven million, two hundred twelve thousand, two hundred twelve".