551222201140 has 48 divisors (see below), whose sum is σ = 1254976808400. Its totient is φ = 202162222080.

The previous prime is 551222201119. The next prime is 551222201141. The reversal of 551222201140 is 41102222155.

It can be written as a sum of positive squares in 8 ways, for example, as 146944955556 + 404277245584 = 383334^2 + 635828^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551222201141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7075641 + ... + 7153120.

It is an arithmetic number, because the mean of its divisors is an integer number (26145350175).

Almost surely, 2^551222201140 is an apocalyptic number.

It is an amenable number.

551222201140 is an abundant number, since it is smaller than the sum of its proper divisors (703754607260).

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

551222201140 is a wasteful number, since it uses less digits than its factorization.

551222201140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14228932 (or 14228930 counting only the distinct ones).

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

Adding to 551222201140 its reverse (41102222155), we get a palindrome (592324423295).

The spelling of 551222201140 in words is "five hundred fifty-one billion, two hundred twenty-two million, two hundred one thousand, one hundred forty".