1012212011121 has 8 divisors (see below), whose sum is σ = 1361559519840. Its totient is φ = 668836254912.

The previous prime is 1012212011117. The next prime is 1012212011131. The reversal of 1012212011121 is 1211102122101.

It is a happy number.

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

It is not a de Polignac number, because 1012212011121 - 2² = 1012212011117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1012212011121.

It is not an unprimeable number, because it can be changed into a prime (1012212011131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1492937731 + ... + 1492938408.

It is an arithmetic number, because the mean of its divisors is an integer number (170194939980).

Almost surely, 2^{1012212011121} is an apocalyptic number.

It is an amenable number.

1012212011121 is a deficient number, since it is larger than the sum of its proper divisors (349347508719).

1012212011121 is a wasteful number, since it uses less digits than its factorization.

1012212011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985876255.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1012212011121 its reverse (1211102122101), we get a palindrome (2223314133222).

The spelling of 1012212011121 in words is "one trillion, twelve billion, two hundred twelve million, eleven thousand, one hundred twenty-one".