7212222127 has 8 divisors (see below), whose sum is σ = 8001233280. Its totient is φ = 6445436760.

The previous prime is 7212222071. The next prime is 7212222163.

7212222127 is nontrivially palindromic in base 10.

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 7212222127 - 2¹⁵ = 7212189359 is a prime.

It is a super-2 number, since 2×7212222127² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7212222095 and 7212222104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7212222167) 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, 5555763 + ... + 5557060.

It is an arithmetic number, because the mean of its divisors is an integer number (1000154160).

Almost surely, 2^7212222127 is an apocalyptic number.

7212222127 is a deficient number, since it is larger than the sum of its proper divisors (789011153).

7212222127 is a wasteful number, since it uses less digits than its factorization.

7212222127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11112893.

The product of its digits is 3136, while the sum is 28.

The square root of 7212222127 is about 84924.8027786936. The cubic root of 7212222127 is about 1932.0707750514.

It can be divided in two parts, 72122 and 22127, that added together give a palindrome (94249).

The spelling of 7212222127 in words is "seven billion, two hundred twelve million, two hundred twenty-two thousand, one hundred twenty-seven".