2021303022100 has 36 divisors (see below), whose sum is σ = 4391731153404. Its totient is φ = 807506721280.

The previous prime is 2021303021999. The next prime is 2021303022103. The reversal of 2021303022100 is 12203031202.

It can be written as a sum of positive squares in 6 ways, for example, as 128901104784 + 1892401917316 = 359028^2 + 1375646^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021303022103) 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, 12600997 + ... + 12760396.

It is an arithmetic number, because the mean of its divisors is an integer number (121992532039).

Almost surely, 2^{2021303022100} is an apocalyptic number.

2021303022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021303022100 is an abundant number, since it is smaller than the sum of its proper divisors (2370428131304).

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

2021303022100 is a wasteful number, since it uses less digits than its factorization.

2021303022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25362204 (or 25362197 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 2021303022100 its reverse (12203031202), we get a palindrome (2033506053302).

The spelling of 2021303022100 in words is "two trillion, twenty-one billion, three hundred three million, twenty-two thousand, one hundred".