2002121021022 has 24 divisors (see below), whose sum is σ = 4253641204056. Its totient is φ = 628116398208.

The previous prime is 2002121021003. The next prime is 2002121021027. The reversal of 2002121021022 is 2201201212002.

It is a junction number, because it is equal to n+sod(n) for n = 2002121020992 and 2002121021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002121021027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 577311133 + ... + 577314600.

It is an arithmetic number, because the mean of its divisors is an integer number (177235050169).

Almost surely, 2^{2002121021022} is an apocalyptic number.

2002121021022 is an abundant number, since it is smaller than the sum of its proper divisors (2251520183034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2002121021022 is a wasteful number, since it uses less digits than its factorization.

2002121021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154625772 (or 1154625755 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2002121021022 its reverse (2201201212002), we get a palindrome (4203322233024).

The spelling of 2002121021022 in words is "two trillion, two billion, one hundred twenty-one million, twenty-one thousand, twenty-two".