20202121002111 has 8 divisors (see below), whose sum is σ = 27038580201600. Its totient is φ = 13416871235352.

The previous prime is 20202121002103. The next prime is 20202121002137. The reversal of 20202121002111 is 11120012120202.

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

It is not a de Polignac number, because 20202121002111 - 2³ = 20202121002103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202121002191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12802357261 + ... + 12802358838.

It is an arithmetic number, because the mean of its divisors is an integer number (3379822525200).

Almost surely, 2^{20202121002111} is an apocalyptic number.

20202121002111 is a deficient number, since it is larger than the sum of its proper divisors (6836459199489).

20202121002111 is a wasteful number, since it uses less digits than its factorization.

20202121002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25604716365.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20202121002111 its reverse (11120012120202), we get a palindrome (31322133122313).

The spelling of 20202121002111 in words is "twenty trillion, two hundred two billion, one hundred twenty-one million, two thousand, one hundred eleven".