1212200001121 has 8 divisors (see below), whose sum is σ = 1276084589600. Its totient is φ = 1148323871520.

The previous prime is 1212200001119. The next prime is 1212200001137. The reversal of 1212200001121 is 1211000022121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212200001121 - 2¹ = 1212200001119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212200041121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1819500 + ... + 2394781.

It is an arithmetic number, because the mean of its divisors is an integer number (159510573700).

Almost surely, 2^{1212200001121} is an apocalyptic number.

It is an amenable number.

1212200001121 is a deficient number, since it is larger than the sum of its proper divisors (63884588479).

1212200001121 is a wasteful number, since it uses less digits than its factorization.

1212200001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229439.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1212200001121 its reverse (1211000022121), we get a palindrome (2423200023242).

The spelling of 1212200001121 in words is "one trillion, two hundred twelve billion, two hundred million, one thousand, one hundred twenty-one".