1215101382 has 32 divisors (see below), whose sum is σ = 2654066304. Its totient is φ = 367804800.

The previous prime is 1215101341. The next prime is 1215101383. The reversal of 1215101382 is 2831015121.

1215101382 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215101383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52782 + ... + 72222.

It is an arithmetic number, because the mean of its divisors is an integer number (82939572).

Almost surely, 2^1215101382 is an apocalyptic number.

1215101382 is an abundant number, since it is smaller than the sum of its proper divisors (1438964922).

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

1215101382 is a wasteful number, since it uses less digits than its factorization.

1215101382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20404.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 1215101382 is about 34858.3043477447. The cubic root of 1215101382 is about 1067.0976699419.

The spelling of 1215101382 in words is "one billion, two hundred fifteen million, one hundred one thousand, three hundred eighty-two".