211220000210001 has 8 divisors (see below), whose sum is σ = 290711398138624. Its totient is φ = 136270967877360.

The previous prime is 211220000209993. The next prime is 211220000210111. The reversal of 211220000210001 is 100012000022112.

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

It is not a de Polignac number, because 211220000210001 - 2³ = 211220000209993 is a prime.

It is a super-2 number, since 2×211220000210001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211220000210501) 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, 1135591398886 + ... + 1135591399071.

It is an arithmetic number, because the mean of its divisors is an integer number (36338924767328).

Almost surely, 2^{211220000210001} is an apocalyptic number.

It is an amenable number.

211220000210001 is a deficient number, since it is larger than the sum of its proper divisors (79491397928623).

211220000210001 is a wasteful number, since it uses less digits than its factorization.

211220000210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271182797991.

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

Adding to 211220000210001 its reverse (100012000022112), we get a palindrome (311232000232113).

The spelling of 211220000210001 in words is "two hundred eleven trillion, two hundred twenty billion, two hundred ten thousand, one".