202120200001211 has 16 divisors (see below), whose sum is σ = 216833465328480. Its totient is φ = 187734601152000.

The previous prime is 202120200001207. The next prime is 202120200001231. The reversal of 202120200001211 is 112100002021202.

It is a cyclic number.

It is not a de Polignac number, because 202120200001211 - 2² = 202120200001207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202120200001231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216820316 + ... + 217750521.

It is an arithmetic number, because the mean of its divisors is an integer number (13552091583030).

Almost surely, 2^{202120200001211} is an apocalyptic number.

202120200001211 is a deficient number, since it is larger than the sum of its proper divisors (14713265327269).

202120200001211 is a wasteful number, since it uses less digits than its factorization.

202120200001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434571214.

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

Adding to 202120200001211 its reverse (112100002021202), we get a palindrome (314220202022413).

The spelling of 202120200001211 in words is "two hundred two trillion, one hundred twenty billion, two hundred million, one thousand, two hundred eleven".