20021101200122 has 64 divisors (see below), whose sum is σ = 33805876756608. Its totient is φ = 8887515436800.

The previous prime is 20021101200109. The next prime is 20021101200131. The reversal of 20021101200122 is 22100210112002.

It is a junction number, because it is equal to n+sod(n) for n = 20021101200097 and 20021101200106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1446499922 + ... + 1446513762.

It is an arithmetic number, because the mean of its divisors is an integer number (528216824322).

Almost surely, 2^{20021101200122} is an apocalyptic number.

20021101200122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20021101200122 is a deficient number, since it is larger than the sum of its proper divisors (13784775556486).

20021101200122 is a wasteful number, since it uses less digits than its factorization.

20021101200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26556 (or 26534 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20021101200122 its reverse (22100210112002), we get a palindrome (42121311312124).

The spelling of 20021101200122 in words is "twenty trillion, twenty-one billion, one hundred one million, two hundred thousand, one hundred twenty-two".