1215104100010 has 16 divisors (see below), whose sum is σ = 2187239190696. Its totient is φ = 486030126528.

The previous prime is 1215104099929. The next prime is 1215104100029. The reversal of 1215104100010 is 100014015121.

It can be written as a sum of positive squares in 4 ways, for example, as 1210081401369 + 5022698641 = 1100037^2 + 70871^2 .

It is a super-2 number, since 2×1215104100010² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 989229 + ... + 1846288.

Almost surely, 2^{1215104100010} is an apocalyptic number.

1215104100010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1215104100010 is a deficient number, since it is larger than the sum of its proper divisors (972135090686).

1215104100010 is a wasteful number, since it uses less digits than its factorization.

1215104100010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878377.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 1215104100010 its reverse (100014015121), we get a palindrome (1315118115131).

The spelling of 1215104100010 in words is "one trillion, two hundred fifteen billion, one hundred four million, one hundred thousand, ten".