1002020211252 has 36 divisors (see below), whose sum is σ = 2626694959616. Its totient is φ = 334006736760.

The previous prime is 1002020211211. The next prime is 1002020211253. The reversal of 1002020211252 is 2521120202001.

1002020211252 is a `hidden beast` number, since 1 + 0 + 0 + 202 + 0 + 211 + 252 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002020211253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 515441524 + ... + 515443467.

Almost surely, 2^{1002020211252} is an apocalyptic number.

1002020211252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1002020211252 is an abundant number, since it is smaller than the sum of its proper divisors (1624674748364).

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

1002020211252 is a wasteful number, since it uses less digits than its factorization.

1002020211252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030885010 (or 1030884996 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 1002020211252 its reverse (2521120202001), we get a palindrome (3523140413253).

The spelling of 1002020211252 in words is "one trillion, two billion, twenty million, two hundred eleven thousand, two hundred fifty-two".