7220243076601 has 9 divisors (see below), whose sum is σ = 7420761063471. Its totient is φ = 7025004637992.

The previous prime is 7220243076581. The next prime is 7220243076617. The reversal of 7220243076601 is 1066703420227.

It is a happy number.

The square root of 7220243076601 is 2687051.

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

It can be written as a sum of positive squares in only one way, i.e., 6460772658025 + 759470418576 = 2541805^2 + 871476^2 .

It is not a de Polignac number, because 7220243076601 - 2³⁵ = 7185883338233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7220243076301) 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, 99384576 + ... + 99457198.

Almost surely, 2^{7220243076601} is an apocalyptic number.

7220243076601 is the 2687051-st square number.

7220243076601 is the 1343526-th centered octagonal number.

It is an amenable number.

7220243076601 is a deficient number, since it is larger than the sum of its proper divisors (200517986870).

7220243076601 is an frugal number, since it uses more digits than its factorization.

7220243076601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145320 (or 72660 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

Adding to 7220243076601 its reverse (1066703420227), we get a palindrome (8286946496828).

The spelling of 7220243076601 in words is "seven trillion, two hundred twenty billion, two hundred forty-three million, seventy-six thousand, six hundred one".