7021402542001 has 2 divisors, whose sum is σ = 7021402542002. Its totient is φ = 7021402542000.

The previous prime is 7021402541999. The next prime is 7021402542023. The reversal of 7021402542001 is 1002452041207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4470750792225 + 2550651749776 = 2114415^2 + 1597076^2 .

It is a cyclic number.

It is not a de Polignac number, because 7021402542001 - 2¹ = 7021402541999 is a prime.

Together with 7021402541999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7021402548001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3510701271000 + 3510701271001.

It is an arithmetic number, because the mean of its divisors is an integer number (3510701271001).

Almost surely, 2^{7021402542001} is an apocalyptic number.

It is an amenable number.

7021402542001 is a deficient number, since it is larger than the sum of its proper divisors (1).

7021402542001 is an equidigital number, since it uses as much as digits as its factorization.

7021402542001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 28.

Adding to 7021402542001 its reverse (1002452041207), we get a palindrome (8023854583208).

The spelling of 7021402542001 in words is "seven trillion, twenty-one billion, four hundred two million, five hundred forty-two thousand, one".