2198430720001 has 2 divisors, whose sum is σ = 2198430720002. Its totient is φ = 2198430720000.

The previous prime is 2198430719999. The next prime is 2198430720011. The reversal of 2198430720001 is 1000270348912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1586468721601 + 611961998400 = 1259551^2 + 782280^2 .

It is a cyclic number.

It is not a de Polignac number, because 2198430720001 - 2¹ = 2198430719999 is a prime.

It is a super-2 number, since 2×2198430720001² (a number of 25 digits) contains 22 as substring.

Together with 2198430719999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2198430720011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099215360000 + 1099215360001.

It is an arithmetic number, because the mean of its divisors is an integer number (1099215360001).

Almost surely, 2^{2198430720001} is an apocalyptic number.

It is an amenable number.

2198430720001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2198430720001 is an equidigital number, since it uses as much as digits as its factorization.

2198430720001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 2198430720001 in words is "two trillion, one hundred ninety-eight billion, four hundred thirty million, seven hundred twenty thousand, one".