2011929021 has 24 divisors (see below), whose sum is σ = 2977465920. Its totient is φ = 1308436416.

The previous prime is 2011929013. The next prime is 2011929037. The reversal of 2011929021 is 1209291102.

It is not a de Polignac number, because 2011929021 - 2³ = 2011929013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011929061) 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, 352825 + ... + 358481.

It is an arithmetic number, because the mean of its divisors is an integer number (124061080).

Almost surely, 2^2011929021 is an apocalyptic number.

It is an amenable number.

2011929021 is a deficient number, since it is larger than the sum of its proper divisors (965536899).

2011929021 is a wasteful number, since it uses less digits than its factorization.

2011929021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6625 (or 6622 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 2011929021 is about 44854.5317777368. The cubic root of 2011929021 is about 1262.4210235340.

The spelling of 2011929021 in words is "two billion, eleven million, nine hundred twenty-nine thousand, twenty-one".