2012021001121 has 8 divisors (see below), whose sum is σ = 2012526588800. Its totient is φ = 2011515493248.

The previous prime is 2012021001113. The next prime is 2012021001143. The reversal of 2012021001121 is 1211001202102.

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 2012021001121 - 2³ = 2012021001113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012021001521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110547580 + ... + 110565778.

It is an arithmetic number, because the mean of its divisors is an integer number (251565823600).

Almost surely, 2^{2012021001121} is an apocalyptic number.

It is an amenable number.

2012021001121 is a deficient number, since it is larger than the sum of its proper divisors (505587679).

2012021001121 is a wasteful number, since it uses less digits than its factorization.

2012021001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39903.

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

Adding to 2012021001121 its reverse (1211001202102), we get a palindrome (3223022203223).

The spelling of 2012021001121 in words is "two trillion, twelve billion, twenty-one million, one thousand, one hundred twenty-one".