120221212552 has 64 divisors (see below), whose sum is σ = 264612741120. Its totient is φ = 50142742848.

The previous prime is 120221212523. The next prime is 120221212571. The reversal of 120221212552 is 255212122021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118393 + ... + 504439.

It is an arithmetic number, because the mean of its divisors is an integer number (4134574080).

Almost surely, 2^120221212552 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 120221212552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132306370560).

120221212552 is an abundant number, since it is smaller than the sum of its proper divisors (144391528568).

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

120221212552 is a wasteful number, since it uses less digits than its factorization.

120221212552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386210 (or 386206 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 120221212552 its reverse (255212122021), we get a palindrome (375433334573).

The spelling of 120221212552 in words is "one hundred twenty billion, two hundred twenty-one million, two hundred twelve thousand, five hundred fifty-two".