20202121101130 has 8 divisors (see below), whose sum is σ = 36363817982052. Its totient is φ = 8080848440448.

The previous prime is 20202121101121. The next prime is 20202121101137. The reversal of 20202121101130 is 3110112120202.

It can be written as a sum of positive squares in 2 ways, for example, as 18561336874369 + 1640784226761 = 4308287^2 + 1280931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20202121101137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010106055047 + ... + 1010106055066.

Almost surely, 2^{20202121101130} is an apocalyptic number.

20202121101130 is a deficient number, since it is larger than the sum of its proper divisors (16161696880922).

20202121101130 is a wasteful number, since it uses less digits than its factorization.

20202121101130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020212110120.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20202121101130 its reverse (3110112120202), we get a palindrome (23312233221332).

The spelling of 20202121101130 in words is "twenty trillion, two hundred two billion, one hundred twenty-one million, one hundred one thousand, one hundred thirty".