20011012202 has 8 divisors (see below), whose sum is σ = 30018015300. Its totient is φ = 10005007104.

The previous prime is 20011012157. The next prime is 20011012267. The reversal of 20011012202 is 20221011002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18604687201 + 1406325001 = 136399^2 + 37501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197177 + ... + 280892.

Almost surely, 2^20011012202 is an apocalyptic number.

20011012202 is a deficient number, since it is larger than the sum of its proper divisors (10007003098).

20011012202 is a wasteful number, since it uses less digits than its factorization.

20011012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499000.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20011012202 its reverse (20221011002), we get a palindrome (40232023204).

The spelling of 20011012202 in words is "twenty billion, eleven million, twelve thousand, two hundred two".