134244222420 has 192 divisors, whose sum is σ = 470462017536. Its totient is φ = 27786117120.

The previous prime is 134244222403. The next prime is 134244222461. The reversal of 134244222420 is 24222442431.

It is a happy number.

It is a super-2 number, since 2×134244222420² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1130809 + ... + 1243871.

It is an arithmetic number, because the mean of its divisors is an integer number (2450323008).

Almost surely, 2^134244222420 is an apocalyptic number.

134244222420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134244222420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235231008768).

134244222420 is an abundant number, since it is smaller than the sum of its proper divisors (336217795116).

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

134244222420 is a wasteful number, since it uses less digits than its factorization.

134244222420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113350 (or 113348 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 134244222420 its reverse (24222442431), we get a palindrome (158466664851).

The spelling of 134244222420 in words is "one hundred thirty-four billion, two hundred forty-four million, two hundred twenty-two thousand, four hundred twenty".