20021101100002 has 16 divisors (see below), whose sum is σ = 31614700570560. Its totient is φ = 9482948765712.

The previous prime is 20021101099997. The next prime is 20021101100003. The reversal of 20021101100002 is 20000110112002.

It is not an unprimeable number, because it can be changed into a prime (20021101100003) 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, 19797453 + ... + 20784160.

It is an arithmetic number, because the mean of its divisors is an integer number (1975918785660).

Almost surely, 2^{20021101100002} is an apocalyptic number.

20021101100002 is a deficient number, since it is larger than the sum of its proper divisors (11593599470558).

20021101100002 is a wasteful number, since it uses less digits than its factorization.

20021101100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40594617.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20021101100002 its reverse (20000110112002), we get a palindrome (40021211212004).

The spelling of 20021101100002 in words is "twenty trillion, twenty-one billion, one hundred one million, one hundred thousand, two".