20020020121211 has 8 divisors (see below), whose sum is σ = 21840506459904. Its totient is φ = 18199614534120.

The previous prime is 20020020121081. The next prime is 20020020121217. The reversal of 20020020121211 is 11212102002002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20020020121211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20020020121217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19668935 + ... + 20661728.

It is an arithmetic number, because the mean of its divisors is an integer number (2730063307488).

Almost surely, 2^{20020020121211} is an apocalyptic number.

20020020121211 is a deficient number, since it is larger than the sum of its proper divisors (1820486338693).

20020020121211 is a wasteful number, since it uses less digits than its factorization.

20020020121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40375801.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20020020121211 its reverse (11212102002002), we get a palindrome (31232122123213).

The spelling of 20020020121211 in words is "twenty trillion, twenty billion, twenty million, one hundred twenty-one thousand, two hundred eleven".