101220012001 has 8 divisors (see below), whose sum is σ = 111833875584. Its totient is φ = 91123897920.

The previous prime is 101220011993. The next prime is 101220012013. The reversal of 101220012001 is 100210022101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101220012001 - 2³ = 101220011993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101220012031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129436965 + ... + 129437746.

It is an arithmetic number, because the mean of its divisors is an integer number (13979234448).

Almost surely, 2^101220012001 is an apocalyptic number.

It is an amenable number.

101220012001 is a deficient number, since it is larger than the sum of its proper divisors (10613863583).

101220012001 is a wasteful number, since it uses less digits than its factorization.

101220012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258874751.

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

Adding to 101220012001 its reverse (100210022101), we get a palindrome (201430034102).

It can be divided in two parts, 1012200 and 12001, that added together give a palindrome (1024201).

The spelling of 101220012001 in words is "one hundred one billion, two hundred twenty million, twelve thousand, one".