211421004411 has 16 divisors (see below), whose sum is σ = 285675215616. Its totient is φ = 139061639136.

The previous prime is 211421004329. The next prime is 211421004481. The reversal of 211421004411 is 114400124112.

211421004411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211421004411 - 2³¹ = 209273520763 is a prime.

It is a super-2 number, since 2×211421004411² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211421004481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386380 + ... + 756393.

It is an arithmetic number, because the mean of its divisors is an integer number (17854700976).

Almost surely, 2^211421004411 is an apocalyptic number.

211421004411 is a deficient number, since it is larger than the sum of its proper divisors (74254211205).

211421004411 is a wasteful number, since it uses less digits than its factorization.

211421004411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143602.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 211421004411 its reverse (114400124112), we get a palindrome (325821128523).

The spelling of 211421004411 in words is "two hundred eleven billion, four hundred twenty-one million, four thousand, four hundred eleven".