125121342210 has 16 divisors (see below), whose sum is σ = 300291221376. Its totient is φ = 33365691248.

The previous prime is 125121342191. The next prime is 125121342259. The reversal of 125121342210 is 12243121521.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2085355674 + ... + 2085355733.

It is an arithmetic number, because the mean of its divisors is an integer number (18768201336).

Almost surely, 2^125121342210 is an apocalyptic number.

125121342210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125121342210 is an abundant number, since it is smaller than the sum of its proper divisors (175169879166).

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

125121342210 is a wasteful number, since it uses less digits than its factorization.

125121342210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4170711417.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 125121342210 its reverse (12243121521), we get a palindrome (137364463731).

The spelling of 125121342210 in words is "one hundred twenty-five billion, one hundred twenty-one million, three hundred forty-two thousand, two hundred ten".