20011201201102 has 4 divisors (see below), whose sum is σ = 30016801801656. Its totient is φ = 10005600600550.

The previous prime is 20011201201097. The next prime is 20011201201171. The reversal of 20011201201102 is 20110210211002.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×20011201201102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002800300274 + ... + 5002800300277.

It is an arithmetic number, because the mean of its divisors is an integer number (7504200450414).

Almost surely, 2^{20011201201102} is an apocalyptic number.

20011201201102 is a deficient number, since it is larger than the sum of its proper divisors (10005600600554).

20011201201102 is a wasteful number, since it uses less digits than its factorization.

20011201201102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10005600600553.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20011201201102 its reverse (20110210211002), we get a palindrome (40121411412104).

The spelling of 20011201201102 in words is "twenty trillion, eleven billion, two hundred one million, two hundred one thousand, one hundred two".