101220100012 has 12 divisors (see below), whose sum is σ = 177151385880. Its totient is φ = 50605418336.

The previous prime is 101220099979. The next prime is 101220100117. The reversal of 101220100012 is 210001022101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108513 + ... + 1196344.

It is an arithmetic number, because the mean of its divisors is an integer number (14762615490).

Almost surely, 2^101220100012 is an apocalyptic number.

It is an amenable number.

101220100012 is a deficient number, since it is larger than the sum of its proper divisors (75931285868).

101220100012 is a wasteful number, since it uses less digits than its factorization.

101220100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315840 (or 2315838 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101220100012 its reverse (210001022101), we get a palindrome (311221122113).

The spelling of 101220100012 in words is "one hundred one billion, two hundred twenty million, one hundred thousand, twelve".