20102221222122 has 16 divisors (see below), whose sum is σ = 43297091863200. Its totient is φ = 6185298837552.

The previous prime is 20102221222121. The next prime is 20102221222129. The reversal of 20102221222122 is 22122212220102.

It is not an unprimeable number, because it can be changed into a prime (20102221222121) 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, 128860392372 + ... + 128860392527.

It is an arithmetic number, because the mean of its divisors is an integer number (2706068241450).

Almost surely, 2^{20102221222122} is an apocalyptic number.

20102221222122 is an abundant number, since it is smaller than the sum of its proper divisors (23194870641078).

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

20102221222122 is a wasteful number, since it uses less digits than its factorization.

20102221222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257720784917.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20102221222122 its reverse (22122212220102), we get a palindrome (42224433442224).

The spelling of 20102221222122 in words is "twenty trillion, one hundred two billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-two".