125215431220001 has 8 divisors (see below), whose sum is σ = 126293263032960. Its totient is φ = 124142215389808.

The previous prime is 125215431219937. The next prime is 125215431220003. The reversal of 125215431220001 is 100022134512521.

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 125215431220001 - 2⁶ = 125215431219937 is a prime.

It is a super-2 number, since 2×125215431220001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125215431220003) 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, 1153941206 + ... + 1154049711.

It is an arithmetic number, because the mean of its divisors is an integer number (15786657879120).

Almost surely, 2^{125215431220001} is an apocalyptic number.

It is an amenable number.

125215431220001 is a deficient number, since it is larger than the sum of its proper divisors (1077831812959).

125215431220001 is a wasteful number, since it uses less digits than its factorization.

125215431220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307991383.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 125215431220001 its reverse (100022134512521), we get a palindrome (225237565732522).

The spelling of 125215431220001 in words is "one hundred twenty-five trillion, two hundred fifteen billion, four hundred thirty-one million, two hundred twenty thousand, one".