1212323200101 has 64 divisors (see below), whose sum is σ = 1956982836480. Its totient is φ = 737281440000.

The previous prime is 1212323200087. The next prime is 1212323200169. The reversal of 1212323200101 is 1010023232121.

1212323200101 is a `hidden beast` number, since 1 + 212 + 32 + 320 + 0 + 101 = 666.

It is not a de Polignac number, because 1212323200101 - 2³⁰ = 1211249458277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212323200301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19147386 + ... + 19210596.

It is an arithmetic number, because the mean of its divisors is an integer number (30577856820).

Almost surely, 2^{1212323200101} is an apocalyptic number.

It is an amenable number.

1212323200101 is a deficient number, since it is larger than the sum of its proper divisors (744659636379).

1212323200101 is a wasteful number, since it uses less digits than its factorization.

1212323200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63875 (or 63869 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1212323200101 its reverse (1010023232121), we get a palindrome (2222346432222).

The spelling of 1212323200101 in words is "one trillion, two hundred twelve billion, three hundred twenty-three million, two hundred thousand, one hundred one".