2021202000144 has 120 divisors (see below), whose sum is σ = 5793657217920. Its totient is φ = 657589135104.

The previous prime is 2021202000143. The next prime is 2021202000157. The reversal of 2021202000144 is 4410002021202.

2021202000144 is a `hidden beast` number, since 202 + 120 + 200 + 0 + 144 = 666.

It is a super-2 number, since 2×2021202000144² (a number of 25 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2021202000143) 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, 90649 + ... + 2012615.

It is an arithmetic number, because the mean of its divisors is an integer number (48280476816).

Almost surely, 2^{2021202000144} is an apocalyptic number.

2021202000144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021202000144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2896828608960).

2021202000144 is an abundant number, since it is smaller than the sum of its proper divisors (3772455217776).

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

2021202000144 is a wasteful number, since it uses less digits than its factorization.

2021202000144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922157 (or 1922148 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2021202000144 its reverse (4410002021202), we get a palindrome (6431204021346).

The spelling of 2021202000144 in words is "two trillion, twenty-one billion, two hundred two million, one hundred forty-four", and thus it is an aban number.