2002020121012 has 12 divisors (see below), whose sum is σ = 3525850723780. Its totient is φ = 994634199936.

The previous prime is 2002020120983. The next prime is 2002020121067. The reversal of 2002020121012 is 2101210202002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 469559339536 + 1532460781476 = 685244^2 + 1237926^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2002020120983 and 2002020121001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1593964437 + ... + 1593965692.

Almost surely, 2^{2002020121012} is an apocalyptic number.

It is an amenable number.

2002020121012 is a deficient number, since it is larger than the sum of its proper divisors (1523830602768).

2002020121012 is a wasteful number, since it uses less digits than its factorization.

2002020121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187930290 (or 3187930288 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2002020121012 its reverse (2101210202002), we get a palindrome (4103230323014).

The spelling of 2002020121012 in words is "two trillion, two billion, twenty million, one hundred twenty-one thousand, twelve".