221012210211042 has 16 divisors (see below), whose sum is σ = 442769824173600. Its totient is φ = 73546502778432.

The previous prime is 221012210211041. The next prime is 221012210211103. The reversal of 221012210211042 is 240112012210122.

It is not an unprimeable number, because it can be changed into a prime (221012210211041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31058485792 + ... + 31058492907.

It is an arithmetic number, because the mean of its divisors is an integer number (27673114010850).

Almost surely, 2^{221012210211042} is an apocalyptic number.

221012210211042 is an abundant number, since it is smaller than the sum of its proper divisors (221757613962558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221012210211042 is a wasteful number, since it uses less digits than its factorization.

221012210211042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62116979297.

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

Adding to 221012210211042 its reverse (240112012210122), we get a palindrome (461124222421164).

The spelling of 221012210211042 in words is "two hundred twenty-one trillion, twelve billion, two hundred ten million, two hundred eleven thousand, forty-two".