1552200551221 has 8 divisors (see below), whose sum is σ = 1612094336640. Its totient is φ = 1493426275968.

The previous prime is 1552200551171. The next prime is 1552200551233. The reversal of 1552200551221 is 1221550022551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1552200551221 - 2³¹ = 1550053067573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552200554221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279874716 + ... + 279880261.

It is an arithmetic number, because the mean of its divisors is an integer number (201511792080).

Almost surely, 2^{1552200551221} is an apocalyptic number.

It is an amenable number.

1552200551221 is a deficient number, since it is larger than the sum of its proper divisors (59893785419).

1552200551221 is an equidigital number, since it uses as much as digits as its factorization.

1552200551221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559755083.

The product of its (nonzero) digits is 10000, while the sum is 31.

Adding to 1552200551221 its reverse (1221550022551), we get a palindrome (2773750573772).

The spelling of 1552200551221 in words is "one trillion, five hundred fifty-two billion, two hundred million, five hundred fifty-one thousand, two hundred twenty-one".