126212120 has 16 divisors (see below), whose sum is σ = 283977360. Its totient is φ = 50484832.

The previous prime is 126212113. The next prime is 126212137. The reversal of 126212120 is 21212621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1577612 + ... + 1577691.

It is an arithmetic number, because the mean of its divisors is an integer number (17748585).

Almost surely, 2^126212120 is an apocalyptic number.

126212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126212120 is an abundant number, since it is smaller than the sum of its proper divisors (157765240).

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

126212120 is a wasteful number, since it uses less digits than its factorization.

126212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155314 (or 3155310 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 126212120 is about 11234.4167627875. The cubic root of 126212120 is about 501.6109640155.

Adding to 126212120 its reverse (21212621), we get a palindrome (147424741).

It can be divided in two parts, 12621 and 2120, that added together give a palindrome (14741).

The spelling of 126212120 in words is "one hundred twenty-six million, two hundred twelve thousand, one hundred twenty".