20021201010022 has 4 divisors (see below), whose sum is σ = 30031801515036. Its totient is φ = 10010600505010.

The previous prime is 20021201009993. The next prime is 20021201010043. The reversal of 20021201010022 is 22001010212002.

It is a happy number.

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 = 20021201009984 and 20021201010011.

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, 5005300252504 + ... + 5005300252507.

It is an arithmetic number, because the mean of its divisors is an integer number (7507950378759).

Almost surely, 2^{20021201010022} is an apocalyptic number.

20021201010022 is a deficient number, since it is larger than the sum of its proper divisors (10010600505014).

20021201010022 is a wasteful number, since it uses less digits than its factorization.

20021201010022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010600505013.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20021201010022 its reverse (22001010212002), we get a palindrome (42022211222024).

The spelling of 20021201010022 in words is "twenty trillion, twenty-one billion, two hundred one million, ten thousand, twenty-two".