20001101222002 has 8 divisors (see below), whose sum is σ = 30733399438812. Its totient is φ = 9756634742400.

The previous prime is 20001101221991. The next prime is 20001101222087. The reversal of 20001101222002 is 20022210110002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17145471022681 + 2855630199321 = 4140709^2 + 1689861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121957934199 + ... + 121957934362.

Almost surely, 2^{20001101222002} is an apocalyptic number.

20001101222002 is a deficient number, since it is larger than the sum of its proper divisors (10732298216810).

20001101222002 is a wasteful number, since it uses less digits than its factorization.

20001101222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243915868604.

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

Adding to 20001101222002 its reverse (20022210110002), we get a palindrome (40023311332004).

The spelling of 20001101222002 in words is "twenty trillion, one billion, one hundred one million, two hundred twenty-two thousand, two".