2221402154215 has 8 divisors (see below), whose sum is σ = 2686672212480. Its totient is φ = 1763128638432.

The previous prime is 2221402154189. The next prime is 2221402154287. The reversal of 2221402154215 is 5124512041222.

2221402154215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2221402154215 - 2⁷ = 2221402154087 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1749134920 + ... + 1749136189.

It is an arithmetic number, because the mean of its divisors is an integer number (335834026560).

Almost surely, 2^{2221402154215} is an apocalyptic number.

2221402154215 is a deficient number, since it is larger than the sum of its proper divisors (465270058265).

2221402154215 is a wasteful number, since it uses less digits than its factorization.

2221402154215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3498271241.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 2221402154215 its reverse (5124512041222), we get a palindrome (7345914195437).

The spelling of 2221402154215 in words is "two trillion, two hundred twenty-one billion, four hundred two million, one hundred fifty-four thousand, two hundred fifteen".