20001002201122 has 16 divisors (see below), whose sum is σ = 30383304456960. Its totient is φ = 9873395455792.

The previous prime is 20001002201083. The next prime is 20001002201123. The reversal of 20001002201122 is 22110220010002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20001002201123) 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, 40103122 + ... + 40598797.

It is an arithmetic number, because the mean of its divisors is an integer number (1898956528560).

Almost surely, 2^{20001002201122} is an apocalyptic number.

20001002201122 is a deficient number, since it is larger than the sum of its proper divisors (10382302255838).

20001002201122 is a wasteful number, since it uses less digits than its factorization.

20001002201122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80703497.

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

Adding to 20001002201122 its reverse (22110220010002), we get a palindrome (42111222211124).

The spelling of 20001002201122 in words is "twenty trillion, one billion, two million, two hundred one thousand, one hundred twenty-two".