101311211212 has 24 divisors (see below), whose sum is σ = 177790208400. Its totient is φ = 50514086400.

The previous prime is 101311211201. The next prime is 101311211231. The reversal of 101311211212 is 212112113101.

It is a happy 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, 6885039 + ... + 6899737.

It is an arithmetic number, because the mean of its divisors is an integer number (7407925350).

Almost surely, 2^101311211212 is an apocalyptic number.

It is an amenable number.

101311211212 is a deficient number, since it is larger than the sum of its proper divisors (76478997188).

101311211212 is a wasteful number, since it uses less digits than its factorization.

101311211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19401 (or 19399 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 101311211212 its reverse (212112113101), we get a palindrome (313423324313).

The spelling of 101311211212 in words is "one hundred one billion, three hundred eleven million, two hundred eleven thousand, two hundred twelve".