20020120211 has 8 divisors (see below), whose sum is σ = 24640148064. Its totient is φ = 15840095040.

The previous prime is 20020120177. The next prime is 20020120243. The reversal of 20020120211 is 11202102002.

It is a happy number.

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

It is not a de Polignac number, because 20020120211 - 2⁶ = 20020120147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20020120192 and 20020120201.

It is not an unprimeable number, because it can be changed into a prime (20020120511) 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, 110000570 + ... + 110000751.

It is an arithmetic number, because the mean of its divisors is an integer number (3080018508).

Almost surely, 2^20020120211 is an apocalyptic number.

20020120211 is a deficient number, since it is larger than the sum of its proper divisors (4620027853).

20020120211 is a wasteful number, since it uses less digits than its factorization.

20020120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220001341.

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

Adding to 20020120211 its reverse (11202102002), we get a palindrome (31222222213).

The spelling of 20020120211 in words is "twenty billion, twenty million, one hundred twenty thousand, two hundred eleven".