7221501572141 has 4 divisors (see below), whose sum is σ = 7221529605984. Its totient is φ = 7221473538300.

The previous prime is 7221501572137. The next prime is 7221501572203. The reversal of 7221501572141 is 1412751051227.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7221501572141 - 2² = 7221501572137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7221501572095 and 7221501572104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7229501572141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13626905 + ... + 14146926.

It is an arithmetic number, because the mean of its divisors is an integer number (1805382401496).

Almost surely, 2^{7221501572141} is an apocalyptic number.

It is an amenable number.

7221501572141 is a deficient number, since it is larger than the sum of its proper divisors (28033843).

7221501572141 is a wasteful number, since it uses less digits than its factorization.

7221501572141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28033842.

The product of its (nonzero) digits is 39200, while the sum is 38.

The spelling of 7221501572141 in words is "seven trillion, two hundred twenty-one billion, five hundred one million, five hundred seventy-two thousand, one hundred forty-one".