7215226601021 has 2 divisors, whose sum is σ = 7215226601022. Its totient is φ = 7215226601020.

The previous prime is 7215226601003. The next prime is 7215226601071. The reversal of 7215226601021 is 1201066225127.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5554440249796 + 1660786351225 = 2356786^2 + 1288715^2 .

It is a cyclic number.

It is not a de Polignac number, because 7215226601021 - 2¹⁴ = 7215226584637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7215226601071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3607613300510 + 3607613300511.

It is an arithmetic number, because the mean of its divisors is an integer number (3607613300511).

Almost surely, 2^{7215226601021} is an apocalyptic number.

It is an amenable number.

7215226601021 is a deficient number, since it is larger than the sum of its proper divisors (1).

7215226601021 is an equidigital number, since it uses as much as digits as its factorization.

7215226601021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 7215226601021 in words is "seven trillion, two hundred fifteen billion, two hundred twenty-six million, six hundred one thousand, twenty-one".