2121000112201 has 4 divisors (see below), whose sum is σ = 2134012382992. Its totient is φ = 2107987841412.

The previous prime is 2121000112171. The next prime is 2121000112241. The reversal of 2121000112201 is 1022110001212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2121000112201 - 2¹¹ = 2121000110153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121000112241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6506135151 + ... + 6506135476.

It is an arithmetic number, because the mean of its divisors is an integer number (533503095748).

Almost surely, 2^{2121000112201} is an apocalyptic number.

It is an amenable number.

2121000112201 is a deficient number, since it is larger than the sum of its proper divisors (13012270791).

2121000112201 is a wasteful number, since it uses less digits than its factorization.

2121000112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13012270790.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2121000112201 its reverse (1022110001212), we get a palindrome (3143110113413).

The spelling of 2121000112201 in words is "two trillion, one hundred twenty-one billion, one hundred twelve thousand, two hundred one".