211022242431 has 96 divisors (see below), whose sum is σ = 380616058368. Its totient is φ = 100433882880.

The previous prime is 211022242429. The next prime is 211022242471. The reversal of 211022242431 is 134242220112.

It is not a de Polignac number, because 211022242431 - 2¹ = 211022242429 is a prime.

It is a super-2 number, since 2×211022242431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211022242471) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 58019145 + ... + 58022781.

It is an arithmetic number, because the mean of its divisors is an integer number (3964750608).

Almost surely, 2^211022242431 is an apocalyptic number.

211022242431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

211022242431 is a deficient number, since it is larger than the sum of its proper divisors (169593815937).

211022242431 is a wasteful number, since it uses less digits than its factorization.

211022242431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3949 (or 3810 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 211022242431 its reverse (134242220112), we get a palindrome (345264462543).

The spelling of 211022242431 in words is "two hundred eleven billion, twenty-two million, two hundred forty-two thousand, four hundred thirty-one".