7342126221 has 4 divisors (see below), whose sum is σ = 9789501632. Its totient is φ = 4894750812.

The previous prime is 7342126193. The next prime is 7342126223. The reversal of 7342126221 is 1226212437.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1226212437 = 3 ⋅408737479.

It is not a de Polignac number, because 7342126221 - 2⁶ = 7342126157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7342126223) 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, 1223687701 + ... + 1223687706.

It is an arithmetic number, because the mean of its divisors is an integer number (2447375408).

Almost surely, 2^7342126221 is an apocalyptic number.

It is an amenable number.

7342126221 is a deficient number, since it is larger than the sum of its proper divisors (2447375411).

7342126221 is a wasteful number, since it uses less digits than its factorization.

7342126221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447375410.

The product of its digits is 8064, while the sum is 30.

The square root of 7342126221 is about 85686.2078808486. The cubic root of 7342126221 is about 1943.6017530730.

Adding to 7342126221 its reverse (1226212437), we get a palindrome (8568338658).

The spelling of 7342126221 in words is "seven billion, three hundred forty-two million, one hundred twenty-six thousand, two hundred twenty-one".