20020121020222 has 4 divisors (see below), whose sum is σ = 30030181530336. Its totient is φ = 10010060510110.

The previous prime is 20020121020217. The next prime is 20020121020243. The reversal of 20020121020222 is 22202012102002.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20020121020196 and 20020121020205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005030255054 + ... + 5005030255057.

It is an arithmetic number, because the mean of its divisors is an integer number (7507545382584).

Almost surely, 2^{20020121020222} is an apocalyptic number.

20020121020222 is a deficient number, since it is larger than the sum of its proper divisors (10010060510114).

20020121020222 is a wasteful number, since it uses less digits than its factorization.

20020121020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010060510113.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20020121020222 its reverse (22202012102002), we get a palindrome (42222133122224).

The spelling of 20020121020222 in words is "twenty trillion, twenty billion, one hundred twenty-one million, twenty thousand, two hundred twenty-two".