20011211211002 has 64 divisors (see below), whose sum is σ = 32924575906560. Its totient is φ = 9046454323200.

The previous prime is 20011211210993. The next prime is 20011211211049.

20011211211002 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8727086168 + ... + 8727088460.

It is an arithmetic number, because the mean of its divisors is an integer number (514446498540).

Almost surely, 2^{20011211211002} is an apocalyptic number.

20011211211002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20011211211002 is a deficient number, since it is larger than the sum of its proper divisors (12913364695558).

20011211211002 is a wasteful number, since it uses less digits than its factorization.

20011211211002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919.

The product of its (nonzero) digits is 16, while the sum is 14.

It can be divided in two parts, 2001121 and 1211002, that added together give a palindrome (3212123).

The spelling of 20011211211002 in words is "twenty trillion, eleven billion, two hundred eleven million, two hundred eleven thousand, two".