6221211455 has 8 divisors (see below), whose sum is σ = 7904598192. Its totient is φ = 4684206208.

The previous prime is 6221211449. The next prime is 6221211461. The reversal of 6221211455 is 5541121226.

It is an interprime number because it is at equal distance from previous prime (6221211449) and next prime (6221211461).

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

It is a cyclic number.

It is not a de Polignac number, because 6221211455 - 2¹⁰ = 6221210431 is a prime.

It is a Duffinian number.

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, 36595277 + ... + 36595446.

It is an arithmetic number, because the mean of its divisors is an integer number (988074774).

Almost surely, 2^6221211455 is an apocalyptic number.

6221211455 is a deficient number, since it is larger than the sum of its proper divisors (1683386737).

6221211455 is a wasteful number, since it uses less digits than its factorization.

6221211455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73190745.

The product of its digits is 4800, while the sum is 29.

The square root of 6221211455 is about 78874.6566078103. The cubic root of 6221211455 is about 1839.1831849277.

The spelling of 6221211455 in words is "six billion, two hundred twenty-one million, two hundred eleven thousand, four hundred fifty-five".