101201101221 has 16 divisors (see below), whose sum is σ = 147210896448. Its totient is φ = 61330128000.

The previous prime is 101201101187. The next prime is 101201101223. The reversal of 101201101221 is 122101102101.

It is not a de Polignac number, because 101201101221 - 2¹¹ = 101201099173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101201101197 and 101201101206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101201101223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486115 + ... + 662351.

It is an arithmetic number, because the mean of its divisors is an integer number (9200681028).

Almost surely, 2^101201101221 is an apocalyptic number.

101201101221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101201101221 is a deficient number, since it is larger than the sum of its proper divisors (46009795227).

101201101221 is a wasteful number, since it uses less digits than its factorization.

101201101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193652.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101201101221 its reverse (122101102101), we get a palindrome (223302203322).

The spelling of 101201101221 in words is "one hundred one billion, two hundred one million, one hundred one thousand, two hundred twenty-one".