1215035223101 has 16 divisors (see below), whose sum is σ = 1389915707904. Its totient is φ = 1040481037104.

The previous prime is 1215035223089. The next prime is 1215035223113. The reversal of 1215035223101 is 1013225305121.

It is an interprime number because it is at equal distance from previous prime (1215035223089) and next prime (1215035223113).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1215035223101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215035223121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99562466 + ... + 99574668.

It is an arithmetic number, because the mean of its divisors is an integer number (86869731744).

Almost surely, 2^{1215035223101} is an apocalyptic number.

It is an amenable number.

1215035223101 is a deficient number, since it is larger than the sum of its proper divisors (174880484803).

1215035223101 is a wasteful number, since it uses less digits than its factorization.

1215035223101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24400.

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 1215035223101 in words is "one trillion, two hundred fifteen billion, thirty-five million, two hundred twenty-three thousand, one hundred one".