6220129261 has 8 divisors (see below), whose sum is σ = 6459231744. Its totient is φ = 5983430160.

The previous prime is 6220129249. The next prime is 6220129271. The reversal of 6220129261 is 1629210226.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6220129261 is a prime.

It is a super-2 number, since 2×6220129261² = 77380016047096812242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6220129231) 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, 595570 + ... + 605923.

It is an arithmetic number, because the mean of its divisors is an integer number (807403968).

Almost surely, 2^6220129261 is an apocalyptic number.

It is an amenable number.

6220129261 is a deficient number, since it is larger than the sum of its proper divisors (239102483).

6220129261 is a wasteful number, since it uses less digits than its factorization.

6220129261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201691.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 6220129261 is about 78867.7960957449. The cubic root of 6220129261 is about 1839.0765353658.

Adding to 6220129261 its reverse (1629210226), we get a palindrome (7849339487).

The spelling of 6220129261 in words is "six billion, two hundred twenty million, one hundred twenty-nine thousand, two hundred sixty-one".