20202121033011 has 12 divisors (see below), whose sum is σ = 29181163691680. Its totient is φ = 13467931981200.

The previous prime is 20202121032859. The next prime is 20202121033033. The reversal of 20202121033011 is 11033012120202.

20202121033011 is a `hidden beast` number, since 2 + 0 + 202 + 121 + 0 + 330 + 11 = 666.

It is not a de Polignac number, because 20202121033011 - 2³⁷ = 20064682079539 is a prime.

It is a super-2 number, since 2×20202121033011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20202121033511) 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, 11528731 + ... + 13164948.

Almost surely, 2^{20202121033011} is an apocalyptic number.

20202121033011 is a deficient number, since it is larger than the sum of its proper divisors (8979042658669).

20202121033011 is a wasteful number, since it uses less digits than its factorization.

20202121033011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24784586 (or 24784583 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20202121033011 its reverse (11033012120202), we get a palindrome (31235133153213).

The spelling of 20202121033011 in words is "twenty trillion, two hundred two billion, one hundred twenty-one million, thirty-three thousand, eleven".