1215553405222 has 16 divisors (see below), whose sum is σ = 1969982329392. Its totient is φ = 559197203040.

The previous prime is 1215553405207. The next prime is 1215553405229. The reversal of 1215553405222 is 2225043555121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215553405229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76135429 + ... + 76151392.

It is an arithmetic number, because the mean of its divisors is an integer number (123123895587).

Almost surely, 2^{1215553405222} is an apocalyptic number.

1215553405222 is a deficient number, since it is larger than the sum of its proper divisors (754428924170).

1215553405222 is a wasteful number, since it uses less digits than its factorization.

1215553405222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152287143.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 1215553405222 in words is "one trillion, two hundred fifteen billion, five hundred fifty-three million, four hundred five thousand, two hundred twenty-two".