20202202122121 has 8 divisors (see below), whose sum is σ = 21392176594464. Its totient is φ = 19012406498880.

The previous prime is 20202202122103. The next prime is 20202202122131. The reversal of 20202202122121 is 12122120220202.

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

It is a cyclic number.

It is not a de Polignac number, because 20202202122121 - 2²⁵ = 20202168567689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20202202122101) 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, 44479675 + ... + 44931568.

It is an arithmetic number, because the mean of its divisors is an integer number (2674022074308).

Almost surely, 2^{20202202122121} is an apocalyptic number.

It is an amenable number.

20202202122121 is a deficient number, since it is larger than the sum of its proper divisors (1189974472343).

20202202122121 is a wasteful number, since it uses less digits than its factorization.

20202202122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89424551.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20202202122121 its reverse (12122120220202), we get a palindrome (32324322342323).

The spelling of 20202202122121 in words is "twenty trillion, two hundred two billion, two hundred two million, one hundred twenty-two thousand, one hundred twenty-one".