6722196121 has 9 divisors (see below), whose sum is σ = 6777163029. Its totient is φ = 6667673436.

The previous prime is 6722196101. The next prime is 6722196133. The reversal of 6722196121 is 1216912276.

The square root of 6722196121 is 81989.

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

It is not a de Polignac number, because 6722196121 - 2⁹ = 6722195609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6722196101) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13363956 + ... + 13364458.

Almost surely, 2^6722196121 is an apocalyptic number.

6722196121 is the 81989-th square number.

6722196121 is the 40995-th centered octagonal number.

It is an amenable number.

6722196121 is a deficient number, since it is larger than the sum of its proper divisors (54966908).

6722196121 is an frugal number, since it uses more digits than its factorization.

6722196121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332 (or 666 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The cubic root of 6722196121 is about 1887.2831377297.

The spelling of 6722196121 in words is "six billion, seven hundred twenty-two million, one hundred ninety-six thousand, one hundred twenty-one".