52221211245 has 48 divisors (see below), whose sum is σ = 107994899520. Its totient is φ = 23872550688.

The previous prime is 52221211241. The next prime is 52221211249. The reversal of 52221211245 is 54211212225.

52221211245 is a `hidden beast` number, since 522 + 2 + 12 + 1 + 124 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (52221211241) and next prime (52221211249).

It is not a de Polignac number, because 52221211245 - 2² = 52221211241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52221211241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3940567 + ... + 3953796.

It is an arithmetic number, because the mean of its divisors is an integer number (2249893740).

Almost surely, 2^52221211245 is an apocalyptic number.

It is an amenable number.

52221211245 is an abundant number, since it is smaller than the sum of its proper divisors (55773688275).

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

52221211245 is a wasteful number, since it uses less digits than its factorization.

52221211245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7894391 (or 7894378 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The spelling of 52221211245 in words is "fifty-two billion, two hundred twenty-one million, two hundred eleven thousand, two hundred forty-five".