2012333421 has 12 divisors (see below), whose sum is σ = 3121170432. Its totient is φ = 1149904728.

The previous prime is 2012333413. The next prime is 2012333437. The reversal of 2012333421 is 1243332102.

It is not a de Polignac number, because 2012333421 - 2³ = 2012333413 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012333021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6844525 + ... + 6844818.

It is an arithmetic number, because the mean of its divisors is an integer number (260097536).

Almost surely, 2^2012333421 is an apocalyptic number.

2012333421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2012333421 is a deficient number, since it is larger than the sum of its proper divisors (1108837011).

2012333421 is a wasteful number, since it uses less digits than its factorization.

2012333421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13689360 (or 13689353 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2012333421 is about 44859.0394569478. The cubic root of 2012333421 is about 1262.5056005503.

Adding to 2012333421 its reverse (1243332102), we get a palindrome (3255665523).

The spelling of 2012333421 in words is "two billion, twelve million, three hundred thirty-three thousand, four hundred twenty-one".