101220221211212 has 48 divisors (see below), whose sum is σ = 187133818166400. Its totient is φ = 47772998760960.

The previous prime is 101220221211169. The next prime is 101220221211359. The reversal of 101220221211212 is 212112122022101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23865788 + ... + 27785180.

It is an arithmetic number, because the mean of its divisors is an integer number (3898621211800).

Almost surely, 2^{101220221211212} is an apocalyptic number.

It is an amenable number.

101220221211212 is a deficient number, since it is larger than the sum of its proper divisors (85913596955188).

101220221211212 is a wasteful number, since it uses less digits than its factorization.

101220221211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3920646 (or 3920644 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 101220221211212 its reverse (212112122022101), we get a palindrome (313332343233313).

The spelling of 101220221211212 in words is "one hundred one trillion, two hundred twenty billion, two hundred twenty-one million, two hundred eleven thousand, two hundred twelve".