202142120211 has 36 divisors (see below), whose sum is σ = 303637205664. Its totient is φ = 134566110000.

The previous prime is 202142120209. The next prime is 202142120233. The reversal of 202142120211 is 112021241202.

202142120211 is a `hidden beast` number, since 20 + 21 + 421 + 202 + 1 + 1 = 666.

It is not a de Polignac number, because 202142120211 - 2¹ = 202142120209 is a prime.

It is a super-2 number, since 2×202142120211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202142120291) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4577286 + ... + 4621236.

It is an arithmetic number, because the mean of its divisors is an integer number (8434366824).

Almost surely, 2^202142120211 is an apocalyptic number.

202142120211 is a deficient number, since it is larger than the sum of its proper divisors (101495085453).

202142120211 is an frugal number, since it uses more digits than its factorization.

202142120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44676 (or 44655 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202142120211 its reverse (112021241202), we get a palindrome (314163361413).

The spelling of 202142120211 in words is "two hundred two billion, one hundred forty-two million, one hundred twenty thousand, two hundred eleven".