1215441101412 has 36 divisors (see below), whose sum is σ = 3072452963580. Its totient is φ = 405135435072.

The previous prime is 1215441101311. The next prime is 1215441101423. The reversal of 1215441101412 is 2141011445121.

1215441101412 is a `hidden beast` number, since 1 + 2 + 1 + 544 + 1 + 101 + 4 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 40198646016 + 1175242455396 = 200496^2 + 1084086^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 841414 + ... + 1771682.

It is an arithmetic number, because the mean of its divisors is an integer number (85345915655).

Almost surely, 2^{1215441101412} is an apocalyptic number.

1215441101412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1215441101412 is an abundant number, since it is smaller than the sum of its proper divisors (1857011862168).

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

1215441101412 is a wasteful number, since it uses less digits than its factorization.

1215441101412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966572 (or 966567 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

Adding to 1215441101412 its reverse (2141011445121), we get a palindrome (3356452546533).

The spelling of 1215441101412 in words is "one trillion, two hundred fifteen billion, four hundred forty-one million, one hundred one thousand, four hundred twelve".