2011012211999 has 24 divisors (see below), whose sum is σ = 2348101548000. Its totient is φ = 1717275295680.

The previous prime is 2011012211969. The next prime is 2011012212037. The reversal of 2011012211999 is 9991122101102.

It is not a de Polignac number, because 2011012211999 - 2³² = 2006717244703 is a prime.

It is a super-2 number, since 2×2011012211999² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011012211939) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29666957 + ... + 29734665.

It is an arithmetic number, because the mean of its divisors is an integer number (97837564500).

Almost surely, 2^{2011012211999} is an apocalyptic number.

2011012211999 is a deficient number, since it is larger than the sum of its proper divisors (337089336001).

2011012211999 is a wasteful number, since it uses less digits than its factorization.

2011012211999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69983 (or 69976 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 38.

The spelling of 2011012211999 in words is "two trillion, eleven billion, twelve million, two hundred eleven thousand, nine hundred ninety-nine".