2215021432356 has 48 divisors (see below), whose sum is σ = 5744581890880. Its totient is φ = 738091854720.

The previous prime is 2215021432343. The next prime is 2215021432367. The reversal of 2215021432356 is 6532341205122.

2215021432356 is a `hidden beast` number, since 2 + 2 + 1 + 502 + 143 + 2 + 3 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2215021432356.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3130741 + ... + 3772476.

Almost surely, 2^{2215021432356} is an apocalyptic number.

It is an amenable number.

2215021432356 is an abundant number, since it is smaller than the sum of its proper divisors (3529560458524).

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

2215021432356 is a wasteful number, since it uses less digits than its factorization.

2215021432356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6906201 (or 6906193 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 2215021432356 its reverse (6532341205122), we get a palindrome (8747362637478).

The spelling of 2215021432356 in words is "two trillion, two hundred fifteen billion, twenty-one million, four hundred thirty-two thousand, three hundred fifty-six".