125544321022 has 32 divisors (see below), whose sum is σ = 198570502080. Its totient is φ = 59438695680.

The previous prime is 125544320933. The next prime is 125544321053. The reversal of 125544321022 is 220123445521.

It is a happy number.

It is a super-2 number, since 2×125544321022² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8572218 + ... + 8586850.

It is an arithmetic number, because the mean of its divisors is an integer number (6205328190).

Almost surely, 2^125544321022 is an apocalyptic number.

125544321022 is a deficient number, since it is larger than the sum of its proper divisors (73026181058).

125544321022 is a wasteful number, since it uses less digits than its factorization.

125544321022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17508.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 125544321022 its reverse (220123445521), we get a palindrome (345667766543).

The spelling of 125544321022 in words is "one hundred twenty-five billion, five hundred forty-four million, three hundred twenty-one thousand, twenty-two".