2221212012101 has 8 divisors (see below), whose sum is σ = 2239349898240. Its totient is φ = 2203084251648.

The previous prime is 2221212012043. The next prime is 2221212012113. The reversal of 2221212012101 is 1012102121222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221212012101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2221212012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221212012161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2090591 + ... + 2968668.

It is an arithmetic number, because the mean of its divisors is an integer number (279918737280).

Almost surely, 2^{2221212012101} is an apocalyptic number.

It is an amenable number.

2221212012101 is a deficient number, since it is larger than the sum of its proper divisors (18137886139).

2221212012101 is a wasteful number, since it uses less digits than its factorization.

2221212012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5062843.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2221212012101 its reverse (1012102121222), we get a palindrome (3233314133323).

The spelling of 2221212012101 in words is "two trillion, two hundred twenty-one billion, two hundred twelve million, twelve thousand, one hundred one".