2201210001021 has 8 divisors (see below), whose sum is σ = 2934954041920. Its totient is φ = 1467469647072.

The previous prime is 2201210000999. The next prime is 2201210001043. The reversal of 2201210001021 is 1201000121022.

It is an interprime number because it is at equal distance from previous prime (2201210000999) and next prime (2201210001043).

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

It is not a de Polignac number, because 2201210001021 - 2⁵ = 2201210000989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201210000988 and 2201210001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201210401021) 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, 1113000 + ... + 2375118.

It is an arithmetic number, because the mean of its divisors is an integer number (366869255240).

Almost surely, 2^{2201210001021} is an apocalyptic number.

It is an amenable number.

2201210001021 is a deficient number, since it is larger than the sum of its proper divisors (733744040899).

2201210001021 is a wasteful number, since it uses less digits than its factorization.

2201210001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843475.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2201210001021 its reverse (1201000121022), we get a palindrome (3402210122043).

The spelling of 2201210001021 in words is "two trillion, two hundred one billion, two hundred ten million, one thousand, twenty-one".