225155214001 has 4 divisors (see below), whose sum is σ = 238399638372. Its totient is φ = 211910789632.

The previous prime is 225155213993. The next prime is 225155214017. The reversal of 225155214001 is 100412551522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103957235776 + 121197978225 = 322424^2 + 348135^2 .

It is a cyclic number.

It is not a de Polignac number, because 225155214001 - 2³ = 225155213993 is a prime.

It is a super-2 number, since 2×225155214001² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225155214041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6622212160 + ... + 6622212193.

It is an arithmetic number, because the mean of its divisors is an integer number (59599909593).

Almost surely, 2^225155214001 is an apocalyptic number.

It is an amenable number.

225155214001 is a deficient number, since it is larger than the sum of its proper divisors (13244424371).

225155214001 is a wasteful number, since it uses less digits than its factorization.

225155214001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13244424370.

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 225155214001 its reverse (100412551522), we get a palindrome (325567765523).

The spelling of 225155214001 in words is "two hundred twenty-five billion, one hundred fifty-five million, two hundred fourteen thousand, one".