2002312011021 has 32 divisors (see below), whose sum is σ = 3132511257600. Its totient is φ = 1137158698032.

The previous prime is 2002312011019. The next prime is 2002312011059. The reversal of 2002312011021 is 1201102132002.

It is not a de Polignac number, because 2002312011021 - 2¹ = 2002312011019 is a prime.

It is a super-2 number, since 2×2002312011021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002312011001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5801235 + ... + 6136688.

It is an arithmetic number, because the mean of its divisors is an integer number (97890976800).

Almost surely, 2^{2002312011021} is an apocalyptic number.

2002312011021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2002312011021 is a deficient number, since it is larger than the sum of its proper divisors (1130199246579).

2002312011021 is a wasteful number, since it uses less digits than its factorization.

2002312011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11938110 (or 11938096 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2002312011021 its reverse (1201102132002), we get a palindrome (3203414143023).

The spelling of 2002312011021 in words is "two trillion, two billion, three hundred twelve million, eleven thousand, twenty-one".