221011210102012 has 12 divisors (see below), whose sum is σ = 421930492013016. Its totient is φ = 100459640955440.

The previous prime is 221011210101923. The next prime is 221011210102013. The reversal of 221011210102012 is 210201012110122.

It is a super-2 number, since 2×221011210102012² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221011210102013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2511491023843 + ... + 2511491023930.

It is an arithmetic number, because the mean of its divisors is an integer number (35160874334418).

Almost surely, 2^{221011210102012} is an apocalyptic number.

221011210102012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221011210102012 is a deficient number, since it is larger than the sum of its proper divisors (200919281911004).

221011210102012 is a wasteful number, since it uses less digits than its factorization.

221011210102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5022982047788 (or 5022982047786 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221011210102012 its reverse (210201012110122), we get a palindrome (431212222212134).

The spelling of 221011210102012 in words is "two hundred twenty-one trillion, eleven billion, two hundred ten million, one hundred two thousand, twelve".