101210111212 has 24 divisors (see below), whose sum is σ = 202578806304. Its totient is φ = 43341779712.

The previous prime is 101210111203. The next prime is 101210111227. The reversal of 101210111212 is 212111012101.

It is a happy number.

It is a super-2 number, since 2×101210111212² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101210111192 and 101210111201.

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, 1379533 + ... + 1451044.

It is an arithmetic number, because the mean of its divisors is an integer number (8440783596).

Almost surely, 2^101210111212 is an apocalyptic number.

It is an amenable number.

101210111212 is an abundant number, since it is smaller than the sum of its proper divisors (101368695092).

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

101210111212 is a wasteful number, since it uses less digits than its factorization.

101210111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831865 (or 2831863 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101210111212 its reverse (212111012101), we get a palindrome (313321123313).

The spelling of 101210111212 in words is "one hundred one billion, two hundred ten million, one hundred eleven thousand, two hundred twelve".