2101220221101 has 8 divisors (see below), whose sum is σ = 2801887887840. Its totient is φ = 1400683017552.

The previous prime is 2101220221081. The next prime is 2101220221103. The reversal of 2101220221101 is 1011220221012.

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

It is not a de Polignac number, because 2101220221101 - 2¹¹ = 2101220219053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101220221103) 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, 32578210 + ... + 32642643.

It is an arithmetic number, because the mean of its divisors is an integer number (350235985980).

Almost surely, 2^{2101220221101} is an apocalyptic number.

It is an amenable number.

2101220221101 is a deficient number, since it is larger than the sum of its proper divisors (700667666739).

2101220221101 is a wasteful number, since it uses less digits than its factorization.

2101220221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65231595.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2101220221101 its reverse (1011220221012), we get a palindrome (3112440442113).

The spelling of 2101220221101 in words is "two trillion, one hundred one billion, two hundred twenty million, two hundred twenty-one thousand, one hundred one".