20001121102202 has 32 divisors (see below), whose sum is σ = 31074956700480. Its totient is φ = 9648939283200.

The previous prime is 20001121102177. The next prime is 20001121102217. The reversal of 20001121102202 is 20220112110002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1102049 + ... + 6420027.

It is an arithmetic number, because the mean of its divisors is an integer number (971092396890).

Almost surely, 2^{20001121102202} is an apocalyptic number.

20001121102202 is a deficient number, since it is larger than the sum of its proper divisors (11073835598278).

20001121102202 is a wasteful number, since it uses less digits than its factorization.

20001121102202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5318558.

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

Adding to 20001121102202 its reverse (20220112110002), we get a palindrome (40221233212204).

The spelling of 20001121102202 in words is "twenty trillion, one billion, one hundred twenty-one million, one hundred two thousand, two hundred two".