52221302215320 has 512 divisors, whose sum is σ = 193603737600000. Its totient is φ = 11000052025344.

The previous prime is 52221302215319. The next prime is 52221302215337. The reversal of 52221302215320 is 2351220312225.

It is a happy number.

It is a super-3 number, since 3×52221302215320³ (a number of 42 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4463734831 + ... + 4463746529.

It is an arithmetic number, because the mean of its divisors is an integer number (378132300000).

Almost surely, 2^{52221302215320} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52221302215320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96801868800000).

52221302215320 is an abundant number, since it is smaller than the sum of its proper divisors (141382435384680).

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

52221302215320 is a wasteful number, since it uses less digits than its factorization.

52221302215320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19335 (or 19331 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 52221302215320 its reverse (2351220312225), we get a palindrome (54572522527545).

The spelling of 52221302215320 in words is "fifty-two trillion, two hundred twenty-one billion, three hundred two million, two hundred fifteen thousand, three hundred twenty".