1212122000121 has 32 divisors (see below), whose sum is σ = 1773183294720. Its totient is φ = 734059603200.

The previous prime is 1212122000113. The next prime is 1212122000123. The reversal of 1212122000121 is 1210002212121.

It is not a de Polignac number, because 1212122000121 - 2³ = 1212122000113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212122000121.

It is not an unprimeable number, because it can be changed into a prime (1212122000123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4843170 + ... + 5087291.

It is an arithmetic number, because the mean of its divisors is an integer number (55411977960).

Almost surely, 2^{1212122000121} is an apocalyptic number.

It is an amenable number.

1212122000121 is a deficient number, since it is larger than the sum of its proper divisors (561061294599).

1212122000121 is a wasteful number, since it uses less digits than its factorization.

1212122000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9930577.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1212122000121 its reverse (1210002212121), we get a palindrome (2422124212242).

The spelling of 1212122000121 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, one hundred twenty-one", and thus it is an aban number.