101220021201 has 32 divisors (see below), whose sum is σ = 153364942080. Its totient is φ = 58911519744.

The previous prime is 101220021173. The next prime is 101220021223. The reversal of 101220021201 is 102120022101.

It is not a de Polignac number, because 101220021201 - 2⁵ = 101220021169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101220021251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 554116 + ... + 713781.

It is an arithmetic number, because the mean of its divisors is an integer number (4792654440).

Almost surely, 2^101220021201 is an apocalyptic number.

It is an amenable number.

101220021201 is a deficient number, since it is larger than the sum of its proper divisors (52144920879).

101220021201 is a wasteful number, since it uses less digits than its factorization.

101220021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268025.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101220021201 its reverse (102120022101), we get a palindrome (203340043302).

The spelling of 101220021201 in words is "one hundred one billion, two hundred twenty million, twenty-one thousand, two hundred one".