6211274021 has 8 divisors (see below), whose sum is σ = 6549526080. Its totient is φ = 5874156288.

The previous prime is 6211274009. The next prime is 6211274033. The reversal of 6211274021 is 1204721126.

It is an interprime number because it is at equal distance from previous prime (6211274009) and next prime (6211274033).

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-6211274021 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 (6211271021) 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, 272321 + ... + 294246.

It is an arithmetic number, because the mean of its divisors is an integer number (818690760).

Almost surely, 2^6211274021 is an apocalyptic number.

It is an amenable number.

6211274021 is a deficient number, since it is larger than the sum of its proper divisors (338252059).

6211274021 is a wasteful number, since it uses less digits than its factorization.

6211274021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567163.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 6211274021 is about 78811.6363299228. The cubic root of 6211274021 is about 1838.2033917510.

Adding to 6211274021 its reverse (1204721126), we get a palindrome (7415995147).

The spelling of 6211274021 in words is "six billion, two hundred eleven million, two hundred seventy-four thousand, twenty-one".