2221212010001 has 4 divisors (see below), whose sum is σ = 2221338240000. Its totient is φ = 2221085780004.

The previous prime is 2221212009931. The next prime is 2221212010007. The reversal of 2221212010001 is 1000102121222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221212010001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221212010007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63088601 + ... + 63123798.

It is an arithmetic number, because the mean of its divisors is an integer number (555334560000).

Almost surely, 2^{2221212010001} is an apocalyptic number.

It is an amenable number.

2221212010001 is a deficient number, since it is larger than the sum of its proper divisors (126229999).

2221212010001 is a wasteful number, since it uses less digits than its factorization.

2221212010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126229998.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2221212010001 its reverse (1000102121222), we get a palindrome (3221314131223).

The spelling of 2221212010001 in words is "two trillion, two hundred twenty-one billion, two hundred twelve million, ten thousand, one".