1215035223100 has 36 divisors (see below), whose sum is σ = 2637943207704. Its totient is φ = 485771366080.

The previous prime is 1215035223089. The next prime is 1215035223113. The reversal of 1215035223100 is 13225305121.

It is a super-2 number, since 2×1215035223100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2832739 + ... + 3233338.

It is an arithmetic number, because the mean of its divisors is an integer number (73276200214).

Almost surely, 2^{1215035223100} is an apocalyptic number.

1215035223100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1215035223100 is an abundant number, since it is smaller than the sum of its proper divisors (1422907984604).

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

1215035223100 is a wasteful number, since it uses less digits than its factorization.

1215035223100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6068094 (or 6068087 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 1215035223100 in words is "one trillion, two hundred fifteen billion, thirty-five million, two hundred twenty-three thousand, one hundred".