20011202101002 has 64 divisors (see below), whose sum is σ = 46319438398464. Its totient is φ = 5645127548160.

The previous prime is 20011202100983. The next prime is 20011202101019. The reversal of 20011202101002 is 20010120211002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3907602 + ... + 7435842.

It is an arithmetic number, because the mean of its divisors is an integer number (723741224976).

Almost surely, 2^{20011202101002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20011202101002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23159719199232).

20011202101002 is an abundant number, since it is smaller than the sum of its proper divisors (26308236297462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20011202101002 is a wasteful number, since it uses less digits than its factorization.

20011202101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3529963.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20011202101002 its reverse (20010120211002), we get a palindrome (40021322312004).

The spelling of 20011202101002 in words is "twenty trillion, eleven billion, two hundred two million, one hundred one thousand, two".