7201222512552 has 24 divisors (see below), whose sum is σ = 19503310971690. Its totient is φ = 2400407504160.

The previous prime is 7201222512461. The next prime is 7201222512559. The reversal of 7201222512552 is 2552152221027.

7201222512552 is a `hidden beast` number, since 7 + 20 + 12 + 22 + 51 + 2 + 552 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3861956014596 + 3339266497956 = 1965186^2 + 1827366^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (7201222512559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50008489599 + ... + 50008489742.

Almost surely, 2^{7201222512552} is an apocalyptic number.

7201222512552 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7201222512552 is an abundant number, since it is smaller than the sum of its proper divisors (12302088459138).

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

7201222512552 is a wasteful number, since it uses less digits than its factorization.

7201222512552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100016979353 (or 100016979346 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

Adding to 7201222512552 its reverse (2552152221027), we get a palindrome (9753374733579).

The spelling of 7201222512552 in words is "seven trillion, two hundred one billion, two hundred twenty-two million, five hundred twelve thousand, five hundred fifty-two".