2012121011019 has 32 divisors (see below), whose sum is σ = 3075366311424. Its totient is φ = 1146306631680.

The previous prime is 2012121011011. The next prime is 2012121011029. The reversal of 2012121011019 is 9101101212102.

It is not a de Polignac number, because 2012121011019 - 2³ = 2012121011011 is a prime.

It is a super-2 number, since 2×2012121011019² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2012121010986 and 2012121011004.

It is not an unprimeable number, because it can be changed into a prime (2012121011011) 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, 23542507 + ... + 23627819.

It is an arithmetic number, because the mean of its divisors is an integer number (96105197232).

Almost surely, 2^{2012121011019} is an apocalyptic number.

2012121011019 is a deficient number, since it is larger than the sum of its proper divisors (1063245300405).

2012121011019 is a wasteful number, since it uses less digits than its factorization.

2012121011019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88707.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 2012121011019 in words is "two trillion, twelve billion, one hundred twenty-one million, eleven thousand, nineteen".