2054213221 has 4 divisors (see below), whose sum is σ = 2080216000. Its totient is φ = 2028210444.

The previous prime is 2054213197. The next prime is 2054213263. The reversal of 2054213221 is 1223124502.

It is a happy number.

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: 1223124502 = 2 ⋅611562251.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2054213221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2054213192 and 2054213201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054213621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13001271 + ... + 13001428.

It is an arithmetic number, because the mean of its divisors is an integer number (520054000).

Almost surely, 2^2054213221 is an apocalyptic number.

It is an amenable number.

2054213221 is a deficient number, since it is larger than the sum of its proper divisors (26002779).

2054213221 is an equidigital number, since it uses as much as digits as its factorization.

2054213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26002778.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2054213221 is about 45323.4290516505. The cubic root of 2054213221 is about 1271.2037733890.

Adding to 2054213221 its reverse (1223124502), we get a palindrome (3277337723).

The spelling of 2054213221 in words is "two billion, fifty-four million, two hundred thirteen thousand, two hundred twenty-one".