126199220 has 24 divisors (see below), whose sum is σ = 302878464. Its totient is φ = 43268256.

The previous prime is 126199217. The next prime is 126199223. The reversal of 126199220 is 22991621.

126199220 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (126199217) and next prime (126199223).

126199220 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126199223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450572 + ... + 450851.

It is an arithmetic number, because the mean of its divisors is an integer number (12619936).

Almost surely, 2^126199220 is an apocalyptic number.

126199220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126199220 is an abundant number, since it is smaller than the sum of its proper divisors (176679244).

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

126199220 is a wasteful number, since it uses less digits than its factorization.

126199220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901439 (or 901437 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 126199220 is about 11233.8426195136. The cubic root of 126199220 is about 501.5938737342.

The spelling of 126199220 in words is "one hundred twenty-six million, one hundred ninety-nine thousand, two hundred twenty".