20011122021202 has 16 divisors (see below), whose sum is σ = 32645714680152. Its totient is φ = 9144457891200.

The previous prime is 20011122021199. The next prime is 20011122021211. The reversal of 20011122021202 is 20212022111002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12634406269081 + 7376715752121 = 3554491^2 + 2716011^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3810188163 + ... + 3810193414.

Almost surely, 2^{20011122021202} is an apocalyptic number.

20011122021202 is a deficient number, since it is larger than the sum of its proper divisors (12634592658950).

20011122021202 is a wasteful number, since it uses less digits than its factorization.

20011122021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7620381693.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20011122021202 its reverse (20212022111002), we get a palindrome (40223144132204).

The spelling of 20011122021202 in words is "twenty trillion, eleven billion, one hundred twenty-two million, twenty-one thousand, two hundred two".