12050622221 has 4 divisors (see below), whose sum is σ = 13146133344. Its totient is φ = 10955111100.

The previous prime is 12050622217. The next prime is 12050622289. The reversal of 12050622221 is 12222605021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12222605021 = 11 ⋅1111145911.

It is a cyclic number.

It is not a de Polignac number, because 12050622221 - 2² = 12050622217 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 (12050621221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547755545 + ... + 547755566.

It is an arithmetic number, because the mean of its divisors is an integer number (3286533336).

Almost surely, 2^12050622221 is an apocalyptic number.

12050622221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12050622221 is a deficient number, since it is larger than the sum of its proper divisors (1095511123).

12050622221 is a wasteful number, since it uses less digits than its factorization.

12050622221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095511122.

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 12050622221 in words is "twelve billion, fifty million, six hundred twenty-two thousand, two hundred twenty-one".