20202220022121 has 12 divisors (see below), whose sum is σ = 29288663389440. Its totient is φ = 13418448721560.

The previous prime is 20202220022099. The next prime is 20202220022143. The reversal of 20202220022121 is 12122002220202.

20202220022121 is a `hidden beast` number, since 2 + 0 + 202 + 220 + 0 + 221 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (20202220022099) and next prime (20202220022143).

It is not a de Polignac number, because 20202220022121 - 2¹⁰ = 20202220021097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20202220022094 and 20202220022103.

It is not an unprimeable number, because it can be changed into a prime (20202221022121) 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, 4141494081 + ... + 4141498958.

It is an arithmetic number, because the mean of its divisors is an integer number (2440721949120).

Almost surely, 2^{20202220022121} is an apocalyptic number.

It is an amenable number.

20202220022121 is a deficient number, since it is larger than the sum of its proper divisors (9086443367319).

20202220022121 is a wasteful number, since it uses less digits than its factorization.

20202220022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8282993316 (or 8282993313 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20202220022121 its reverse (12122002220202), we get a palindrome (32324222242323).

The spelling of 20202220022121 in words is "twenty trillion, two hundred two billion, two hundred twenty million, twenty-two thousand, one hundred twenty-one".