61222635271 has 8 divisors (see below), whose sum is σ = 70259054624. Its totient is φ = 52258798080.

The previous prime is 61222635223. The next prime is 61222635319. The reversal of 61222635271 is 17253622216.

It is an interprime number because it is at equal distance from previous prime (61222635223) and next prime (61222635319).

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 61222635271 - 2³⁵ = 26862896903 is a prime.

It is a super-2 number, since 2×61222635271² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61222635271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61222635371) 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, 18143730 + ... + 18147103.

It is an arithmetic number, because the mean of its divisors is an integer number (8782381828).

Almost surely, 2^61222635271 is an apocalyptic number.

61222635271 is a deficient number, since it is larger than the sum of its proper divisors (9036419353).

61222635271 is a wasteful number, since it uses less digits than its factorization.

61222635271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36291081.

The product of its digits is 60480, while the sum is 37.

The spelling of 61222635271 in words is "sixty-one billion, two hundred twenty-two million, six hundred thirty-five thousand, two hundred seventy-one".