6990201922201 has 3 divisors (see below), whose sum is σ = 6990204566101. Its totient is φ = 6990199278302.

The previous prime is 6990201922163. The next prime is 6990201922211. The reversal of 6990201922201 is 1022291020996.

The square root of 6990201922201 is 2643899.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 6990201922201 - 2¹¹ = 6990201920153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6990201922211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1321950 + ... + 3965848.

Almost surely, 2^{6990201922201} is an apocalyptic number.

6990201922201 is the 2643899-th square number.

6990201922201 is the 1321950-th centered octagonal number.

It is an amenable number.

6990201922201 is a deficient number, since it is larger than the sum of its proper divisors (2643900).

6990201922201 is an frugal number, since it uses more digits than its factorization.

6990201922201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287798 (or 2643899 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 6990201922201 in words is "six trillion, nine hundred ninety billion, two hundred one million, nine hundred twenty-two thousand, two hundred one".