2121201103101 has 8 divisors (see below), whose sum is σ = 2855727051840. Its totient is φ = 1400404611552.

The previous prime is 2121201103081. The next prime is 2121201103117. The reversal of 2121201103101 is 1013011021212.

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

It is not a de Polignac number, because 2121201103101 - 2⁵ = 2121201103069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121201103121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3432363936 + ... + 3432364553.

It is an arithmetic number, because the mean of its divisors is an integer number (356965881480).

Almost surely, 2^{2121201103101} is an apocalyptic number.

It is an amenable number.

2121201103101 is a deficient number, since it is larger than the sum of its proper divisors (734525948739).

2121201103101 is a wasteful number, since it uses less digits than its factorization.

2121201103101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6864728595.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 2121201103101 its reverse (1013011021212), we get a palindrome (3134212124313).

The spelling of 2121201103101 in words is "two trillion, one hundred twenty-one billion, two hundred one million, one hundred three thousand, one hundred one".