20020100212211 has 4 divisors (see below), whose sum is σ = 21840109322424. Its totient is φ = 18200091102000.

The previous prime is 20020100212187. The next prime is 20020100212223. The reversal of 20020100212211 is 11221200102002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20020100212211 - 2²⁶ = 20020033103347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020100211211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910004555090 + ... + 910004555111.

It is an arithmetic number, because the mean of its divisors is an integer number (5460027330606).

Almost surely, 2^{20020100212211} is an apocalyptic number.

20020100212211 is a deficient number, since it is larger than the sum of its proper divisors (1820009110213).

20020100212211 is a wasteful number, since it uses less digits than its factorization.

20020100212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820009110212.

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

Adding to 20020100212211 its reverse (11221200102002), we get a palindrome (31241300314213).

The spelling of 20020100212211 in words is "twenty trillion, twenty billion, one hundred million, two hundred twelve thousand, two hundred eleven".