7221250156144 has 40 divisors (see below), whose sum is σ = 14466294161408. Its totient is φ = 3488396725440.

The previous prime is 7221250156073. The next prime is 7221250156157. The reversal of 7221250156144 is 4416510521227.

It is a junction number, because it is equal to n+sod(n) for n = 7221250156097 and 7221250156106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11691492 + ... + 12293635.

Almost surely, 2^{7221250156144} is an apocalyptic number.

It is an amenable number.

7221250156144 is an abundant number, since it is smaller than the sum of its proper divisors (7245044005264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7221250156144 is a wasteful number, since it uses less digits than its factorization.

7221250156144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23985773 (or 23985767 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 7221250156144 in words is "seven trillion, two hundred twenty-one billion, two hundred fifty million, one hundred fifty-six thousand, one hundred forty-four".