2002212123021 has 24 divisors (see below), whose sum is σ = 3187526719104. Its totient is φ = 1200951970560.

The previous prime is 2002212123013. The next prime is 2002212123029. The reversal of 2002212123021 is 1203212122002.

2002212123021 is a `hidden beast` number, since 200 + 2 + 212 + 1 + 230 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (2002212123013) and next prime (2002212123029).

It is not a de Polignac number, because 2002212123021 - 2³ = 2002212123013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2002212122985 and 2002212123003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002212123029) 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 23 ways as a sum of consecutive naturals, for example, 104239701 + ... + 104258906.

It is an arithmetic number, because the mean of its divisors is an integer number (132813613296).

Almost surely, 2^{2002212123021} is an apocalyptic number.

It is an amenable number.

2002212123021 is a deficient number, since it is larger than the sum of its proper divisors (1185314596083).

2002212123021 is a wasteful number, since it uses less digits than its factorization.

2002212123021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208498721 (or 208498718 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2002212123021 its reverse (1203212122002), we get a palindrome (3205424245023).

The spelling of 2002212123021 in words is "two trillion, two billion, two hundred twelve million, one hundred twenty-three thousand, twenty-one".