1215552101394 has 8 divisors (see below), whose sum is σ = 2431104202800. Its totient is φ = 405184033796.

The previous prime is 1215552101341. The next prime is 1215552101399. The reversal of 1215552101394 is 4931012555121.

It is a happy number.

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

1215552101394 is an admirable number.

It is a super-2 number, since 2×1215552101394² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1215552101399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101296008444 + ... + 101296008455.

It is an arithmetic number, because the mean of its divisors is an integer number (303888025350).

Almost surely, 2^{1215552101394} is an apocalyptic number.

1215552101394 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.

1215552101394 is a wasteful number, since it uses less digits than its factorization.

1215552101394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202592016904.

The product of its (nonzero) digits is 54000, while the sum is 39.

The spelling of 1215552101394 in words is "one trillion, two hundred fifteen billion, five hundred fifty-two million, one hundred one thousand, three hundred ninety-four".