20020122210 has 128 divisors (see below), whose sum is σ = 52888163328. Its totient is φ = 4809888000.

The previous prime is 20020122173. The next prime is 20020122211. The reversal of 20020122210 is 1222102002.

It is not an unprimeable number, because it can be changed into a prime (20020122211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34105537 + ... + 34106123.

It is an arithmetic number, because the mean of its divisors is an integer number (413188776).

Almost surely, 2^20020122210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20020122210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26444081664).

20020122210 is an abundant number, since it is smaller than the sum of its proper divisors (32868041118).

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

20020122210 is a wasteful number, since it uses less digits than its factorization.

20020122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20020122210 its reverse (1222102002), we get a palindrome (21242224212).

The spelling of 20020122210 in words is "twenty billion, twenty million, one hundred twenty-two thousand, two hundred ten".