211142444042 has 32 divisors (see below), whose sum is σ = 329557206528. Its totient is φ = 101345400000.

The previous prime is 211142444041. The next prime is 211142444053. The reversal of 211142444042 is 240444241112.

It is a super-2 number, since 2×211142444042² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211142443996 and 211142444014.

It is not an unprimeable number, because it can be changed into a prime (211142444041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34604792 + ... + 34610892.

It is an arithmetic number, because the mean of its divisors is an integer number (10298662704).

Almost surely, 2^211142444042 is an apocalyptic number.

211142444042 is a deficient number, since it is larger than the sum of its proper divisors (118414762486).

211142444042 is a wasteful number, since it uses less digits than its factorization.

211142444042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10526.

The product of its (nonzero) digits is 8192, while the sum is 29.

Adding to 211142444042 its reverse (240444241112), we get a palindrome (451586685154).

The spelling of 211142444042 in words is "two hundred eleven billion, one hundred forty-two million, four hundred forty-four thousand, forty-two".