126212020 has 24 divisors (see below), whose sum is σ = 289140768. Its totient is φ = 45895200.

The previous prime is 126211997. The next prime is 126212071. The reversal of 126212020 is 20212621.

It is a junction number, because it is equal to n+sod(n) for n = 126211985 and 126212003.

It is a congruent 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, 286626 + ... + 287065.

It is an arithmetic number, because the mean of its divisors is an integer number (12047532).

Almost surely, 2^126212020 is an apocalyptic number.

126212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126212020 is an abundant number, since it is smaller than the sum of its proper divisors (162928748).

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

126212020 is a wasteful number, since it uses less digits than its factorization.

126212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573711 (or 573709 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 126212020 is about 11234.4123121773. The cubic root of 126212020 is about 501.6108315372.

Adding to 126212020 its reverse (20212621), we get a palindrome (146424641).

It can be divided in two parts, 12621 and 2020, that added together give a palindrome (14641).

The spelling of 126212020 in words is "one hundred twenty-six million, two hundred twelve thousand, twenty".