1215052111002 has 32 divisors (see below), whose sum is σ = 2439964684800. Its totient is φ = 403377286208.

The previous prime is 1215052110983. The next prime is 1215052111069. The reversal of 1215052111002 is 2001112505121.

It is a self number, because there is not a number n which added to its sum of digits gives 1215052111002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047568 + ... + 1878164.

It is an arithmetic number, because the mean of its divisors is an integer number (76248896400).

Almost surely, 2^{1215052111002} is an apocalyptic number.

1215052111002 is an abundant number, since it is smaller than the sum of its proper divisors (1224912573798).

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

1215052111002 is a wasteful number, since it uses less digits than its factorization.

1215052111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831590.

The product of its (nonzero) digits is 200, while the sum is 21.

Adding to 1215052111002 its reverse (2001112505121), we get a palindrome (3216164616123).

The spelling of 1215052111002 in words is "one trillion, two hundred fifteen billion, fifty-two million, one hundred eleven thousand, two".