125211220344 has 192 divisors, whose sum is σ = 401629962240. Its totient is φ = 34484797440.

The previous prime is 125211220259. The next prime is 125211220349. The reversal of 125211220344 is 443022112521.

125211220344 is a `hidden beast` number, since 12 + 521 + 122 + 0 + 3 + 4 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125211220349) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3999777 + ... + 4030959.

It is an arithmetic number, because the mean of its divisors is an integer number (2091822720).

Almost surely, 2^125211220344 is an apocalyptic number.

125211220344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125211220344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200814981120).

125211220344 is an abundant number, since it is smaller than the sum of its proper divisors (276418741896).

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

125211220344 is a wasteful number, since it uses less digits than its factorization.

125211220344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31490 (or 31483 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 125211220344 its reverse (443022112521), we get a palindrome (568233332865).

The spelling of 125211220344 in words is "one hundred twenty-five billion, two hundred eleven million, two hundred twenty thousand, three hundred forty-four".