2012011121995 has 16 divisors (see below), whose sum is σ = 2767015710720. Its totient is φ = 1375821683424.

The previous prime is 2012011121993. The next prime is 2012011121999. The reversal of 2012011121995 is 5991211102102.

It is a cyclic number.

It is not a de Polignac number, because 2012011121995 - 2¹ = 2012011121993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2012011121995.

It is not an unprimeable number, because it can be changed into a prime (2012011121993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80051547 + ... + 80076676.

It is an arithmetic number, because the mean of its divisors is an integer number (172938481920).

Almost surely, 2^{2012011121995} is an apocalyptic number.

2012011121995 is a deficient number, since it is larger than the sum of its proper divisors (755004588725).

2012011121995 is a wasteful number, since it uses less digits than its factorization.

2012011121995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160128594.

The product of its (nonzero) digits is 3240, while the sum is 34.

The spelling of 2012011121995 in words is "two trillion, twelve billion, eleven million, one hundred twenty-one thousand, nine hundred ninety-five".