126110120121 has 24 divisors (see below), whose sum is σ = 188216570880. Its totient is φ = 81282873600.

The previous prime is 126110120063. The next prime is 126110120131. The reversal of 126110120121 is 121021011621.

126110120121 is a `hidden beast` number, since 12 + 611 + 0 + 1 + 20 + 1 + 21 = 666.

It is not a de Polignac number, because 126110120121 - 2¹³ = 126110111929 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 126110120094 and 126110120103.

It is not an unprimeable number, because it can be changed into a prime (126110120131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72361 + ... + 507401.

It is an arithmetic number, because the mean of its divisors is an integer number (7842357120).

Almost surely, 2^126110120121 is an apocalyptic number.

It is an amenable number.

126110120121 is a deficient number, since it is larger than the sum of its proper divisors (62106450759).

126110120121 is a wasteful number, since it uses less digits than its factorization.

126110120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436117 (or 436114 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 126110120121 its reverse (121021011621), we get a palindrome (247131131742).

The spelling of 126110120121 in words is "one hundred twenty-six billion, one hundred ten million, one hundred twenty thousand, one hundred twenty-one".