6215222429 has 4 divisors (see below), whose sum is σ = 6693316476. Its totient is φ = 5737128384.

The previous prime is 6215222413. The next prime is 6215222459. The reversal of 6215222429 is 9242225126.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9242225126 = 2 ⋅4621112563.

It can be written as a sum of positive squares in 2 ways, for example, as 3209222500 + 3005999929 = 56650^2 + 54827^2 .

It is not a de Polignac number, because 6215222429 - 2⁴ = 6215222413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6215222459) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 239047004 + ... + 239047029.

It is an arithmetic number, because the mean of its divisors is an integer number (1673329119).

Almost surely, 2^6215222429 is an apocalyptic number.

It is an amenable number.

6215222429 is a deficient number, since it is larger than the sum of its proper divisors (478094047).

6215222429 is a wasteful number, since it uses less digits than its factorization.

6215222429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478094046.

The product of its digits is 34560, while the sum is 35.

The square root of 6215222429 is about 78836.6820014643. The cubic root of 6215222429 is about 1838.5928147888.

The spelling of 6215222429 in words is "six billion, two hundred fifteen million, two hundred twenty-two thousand, four hundred twenty-nine".