20201100010002 has 24 divisors (see below), whose sum is σ = 44951997321036. Its totient is φ = 6551708111136.

The previous prime is 20201100009973. The next prime is 20201100010043. The reversal of 20201100010002 is 20001000110202.

It can be written as a sum of positive squares in 2 ways, for example, as 16787137978521 + 3413962031481 = 4097211^2 + 1847691^2 .

It is a super-2 number, since 2×20201100010002² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15165990333 + ... + 15165991664.

Almost surely, 2^{20201100010002} is an apocalyptic number.

20201100010002 is an abundant number, since it is smaller than the sum of its proper divisors (24750897311034).

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

20201100010002 is a wasteful number, since it uses less digits than its factorization.

20201100010002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30331982042 (or 30331982039 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20201100010002 its reverse (20001000110202), we get a palindrome (40202100120204).

The spelling of 20201100010002 in words is "twenty trillion, two hundred one billion, one hundred million, ten thousand, two".