101111212212 has 24 divisors (see below), whose sum is σ = 248343328800. Its totient is φ = 31929856416.

The previous prime is 101111212201. The next prime is 101111212243. The reversal of 101111212212 is 212212111101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101111212191 and 101111212200.

It is a congruent number.

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, 221734887 + ... + 221735342.

It is an arithmetic number, because the mean of its divisors is an integer number (10347638700).

Almost surely, 2^101111212212 is an apocalyptic number.

101111212212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101111212212 is an abundant number, since it is smaller than the sum of its proper divisors (147232116588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101111212212 is a wasteful number, since it uses less digits than its factorization.

101111212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443470255 (or 443470253 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101111212212 its reverse (212212111101), we get a palindrome (313323323313).

The spelling of 101111212212 in words is "one hundred one billion, one hundred eleven million, two hundred twelve thousand, two hundred twelve".