1215010105252 has 12 divisors (see below), whose sum is σ = 2126276853120. Its totient is φ = 607502432936.

The previous prime is 1215010105223. The next prime is 1215010105259. The reversal of 1215010105252 is 2525010105121.

It is a happy number.

It is a super-2 number, since 2×1215010105252² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1215010105259) 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, 700149 + ... + 1708867.

It is an arithmetic number, because the mean of its divisors is an integer number (177189737760).

Almost surely, 2^{1215010105252} is an apocalyptic number.

It is an amenable number.

1215010105252 is a deficient number, since it is larger than the sum of its proper divisors (911266747868).

1215010105252 is a wasteful number, since it uses less digits than its factorization.

1215010105252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309850 (or 1309848 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 25.

The spelling of 1215010105252 in words is "one trillion, two hundred fifteen billion, ten million, one hundred five thousand, two hundred fifty-two".