202103004221144 has 128 divisors (see below), whose sum is σ = 424714818528000. Its totient is φ = 89553434955264.

The previous prime is 202103004221113. The next prime is 202103004221147. The reversal of 202103004221144 is 441122400301202.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202103004221147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2276172302 + ... + 2276261090.

It is an arithmetic number, because the mean of its divisors is an integer number (3318084519750).

Almost surely, 2^{202103004221144} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202103004221144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212357409264000).

202103004221144 is an abundant number, since it is smaller than the sum of its proper divisors (222611814306856).

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

202103004221144 is a wasteful number, since it uses less digits than its factorization.

202103004221144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97537 (or 97533 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 202103004221144 its reverse (441122400301202), we get a palindrome (643225404522346).

The spelling of 202103004221144 in words is "two hundred two trillion, one hundred three billion, four million, two hundred twenty-one thousand, one hundred forty-four".