125654002202221 has 12 divisors (see below), whose sum is σ = 132632268737472. Its totient is φ = 119025530039304.

The previous prime is 125654002202213. The next prime is 125654002202231. The reversal of 125654002202221 is 122202200456521.

It is not a de Polignac number, because 125654002202221 - 2³ = 125654002202213 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 (125654002202231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19231621 + ... + 24923146.

It is an arithmetic number, because the mean of its divisors is an integer number (11052689061456).

Almost surely, 2^{125654002202221} is an apocalyptic number.

It is an amenable number.

125654002202221 is a deficient number, since it is larger than the sum of its proper divisors (6978266535251).

125654002202221 is an equidigital number, since it uses as much as digits as its factorization.

125654002202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44162688 (or 44162669 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 125654002202221 its reverse (122202200456521), we get a palindrome (247856202658742).

The spelling of 125654002202221 in words is "one hundred twenty-five trillion, six hundred fifty-four billion, two million, two hundred two thousand, two hundred twenty-one".