20020122212120 has 32 divisors (see below), whose sum is σ = 45205578472320. Its totient is φ = 7979550485760.

The previous prime is 20020122212059. The next prime is 20020122212161. The reversal of 20020122212120 is 2121222102002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890563592 + ... + 890586071.

It is an arithmetic number, because the mean of its divisors is an integer number (1412674327260).

Almost surely, 2^{20020122212120} is an apocalyptic number.

20020122212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020122212120 is an abundant number, since it is smaller than the sum of its proper divisors (25185456260200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20020122212120 is a wasteful number, since it uses less digits than its factorization.

20020122212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781149955 (or 1781149951 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20020122212120 its reverse (2121222102002), we get a palindrome (22141344314122).

The spelling of 20020122212120 in words is "twenty trillion, twenty billion, one hundred twenty-two million, two hundred twelve thousand, one hundred twenty".