2221212054 has 8 divisors (see below), whose sum is σ = 4442424120. Its totient is φ = 740404016.

The previous prime is 2221212047. The next prime is 2221212079. The reversal of 2221212054 is 4502121222.

It is a sphenic number, since it is the product of 3 distinct primes.

2221212054 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2221212054.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185100999 + ... + 185101010.

It is an arithmetic number, because the mean of its divisors is an integer number (555303015).

Almost surely, 2^2221212054 is an apocalyptic number.

2221212054 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221212054 is a wasteful number, since it uses less digits than its factorization.

2221212054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370202014.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2221212054 is about 47129.7364091929. The cubic root of 2221212054 is about 1304.7581166761.

Adding to 2221212054 its reverse (4502121222), we get a palindrome (6723333276).

The spelling of 2221212054 in words is "two billion, two hundred twenty-one million, two hundred twelve thousand, fifty-four".