211121202202211 has 32 divisors (see below), whose sum is σ = 255182740899840. Its totient is φ = 170625829238784.

The previous prime is 211121202202153. The next prime is 211121202202219. The reversal of 211121202202211 is 112202202121112.

It is a cyclic number.

It is not a de Polignac number, because 211121202202211 - 2⁴⁶ = 140752458024547 is a prime.

It is a super-2 number, since 2×211121202202211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211121202202219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68939366 + ... + 71936628.

It is an arithmetic number, because the mean of its divisors is an integer number (7974460653120).

Almost surely, 2^{211121202202211} is an apocalyptic number.

211121202202211 is a deficient number, since it is larger than the sum of its proper divisors (44061538697629).

211121202202211 is a wasteful number, since it uses less digits than its factorization.

211121202202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999795.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211121202202211 its reverse (112202202121112), we get a palindrome (323323404323323).

The spelling of 211121202202211 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred two million, two hundred two thousand, two hundred eleven".