7242121084 has 12 divisors (see below), whose sum is σ = 13825867608. Its totient is φ = 3291873200.

The previous prime is 7242121063. The next prime is 7242121087. The reversal of 7242121084 is 4801212427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7242121087) 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, 82296787 + ... + 82296874.

It is an arithmetic number, because the mean of its divisors is an integer number (1152155634).

Almost surely, 2^7242121084 is an apocalyptic number.

It is an amenable number.

7242121084 is a deficient number, since it is larger than the sum of its proper divisors (6583746524).

7242121084 is a wasteful number, since it uses less digits than its factorization.

7242121084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164593676 (or 164593674 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 7242121084 is about 85100.6526649473. The cubic root of 7242121084 is about 1934.7369555655.

The spelling of 7242121084 in words is "seven billion, two hundred forty-two million, one hundred twenty-one thousand, eighty-four".