7221346647142 has 8 divisors (see below), whose sum is σ = 11302977360816. Its totient is φ = 3453687526872.

The previous prime is 7221346647131. The next prime is 7221346647149. The reversal of 7221346647142 is 2417466431227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7221346647149) 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, 78492898293 + ... + 78492898384.

It is an arithmetic number, because the mean of its divisors is an integer number (1412872170102).

Almost surely, 2^{7221346647142} is an apocalyptic number.

7221346647142 is a deficient number, since it is larger than the sum of its proper divisors (4081630713674).

7221346647142 is a wasteful number, since it uses less digits than its factorization.

7221346647142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156985796702.

The product of its digits is 2709504, while the sum is 49.

The spelling of 7221346647142 in words is "seven trillion, two hundred twenty-one billion, three hundred forty-six million, six hundred forty-seven thousand, one hundred forty-two".