1212210099975 has 96 divisors (see below), whose sum is σ = 2370116874240. Its totient is φ = 534901248000.

The previous prime is 1212210099931. The next prime is 1212210100009. The reversal of 1212210099975 is 5799900122121.

It is not a de Polignac number, because 1212210099975 - 2¹² = 1212210095879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 73543735 + ... + 73560215.

It is an arithmetic number, because the mean of its divisors is an integer number (24688717440).

Almost surely, 2^{1212210099975} is an apocalyptic number.

1212210099975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1212210099975 is a deficient number, since it is larger than the sum of its proper divisors (1157906774265).

1212210099975 is a wasteful number, since it uses less digits than its factorization.

1212210099975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21361 (or 21356 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 48.

The spelling of 1212210099975 in words is "one trillion, two hundred twelve billion, two hundred ten million, ninety-nine thousand, nine hundred seventy-five".