1002020121201 has 16 divisors (see below), whose sum is σ = 1460865466368. Its totient is φ = 605875899600.

The previous prime is 1002020121187. The next prime is 1002020121203. The reversal of 1002020121201 is 1021210202001.

1002020121201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1002020121201 - 2¹³ = 1002020113009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002020121203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35211121 + ... + 35239566.

It is an arithmetic number, because the mean of its divisors is an integer number (91304091648).

Almost surely, 2^{1002020121201} is an apocalyptic number.

1002020121201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1002020121201 is a deficient number, since it is larger than the sum of its proper divisors (458845345167).

1002020121201 is a wasteful number, since it uses less digits than its factorization.

1002020121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70451132.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1002020121201 its reverse (1021210202001), we get a palindrome (2023230323202).

The spelling of 1002020121201 in words is "one trillion, two billion, twenty million, one hundred twenty-one thousand, two hundred one".