20001011202 has 12 divisors (see below), whose sum is σ = 43335524310. Its totient is φ = 6667003728.

The previous prime is 20001011167. The next prime is 20001011221. The reversal of 20001011202 is 20211010002.

It can be written as a sum of positive squares in only one way, i.e., 10168503921 + 9832507281 = 100839^2 + 99159^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555583627 + ... + 555583662.

Almost surely, 2^20001011202 is an apocalyptic number.

20001011202 is an abundant number, since it is smaller than the sum of its proper divisors (23334513108).

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

20001011202 is a wasteful number, since it uses less digits than its factorization.

20001011202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111167297 (or 1111167294 counting only the distinct ones).

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

Adding to 20001011202 its reverse (20211010002), we get a palindrome (40212021204).

The spelling of 20001011202 in words is "twenty billion, one million, eleven thousand, two hundred two".