221021120000211 has 8 divisors (see below), whose sum is σ = 294709715586960. Its totient is φ = 147339968873472.

The previous prime is 221021120000203. The next prime is 221021120000243. The reversal of 221021120000211 is 112000021120122.

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

It is not a de Polignac number, because 221021120000211 - 2³ = 221021120000203 is a prime.

It is a super-2 number, since 2×221021120000211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221021120000011) 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, 1861045726 + ... + 1861164483.

It is an arithmetic number, because the mean of its divisors is an integer number (36838714448370).

Almost surely, 2^{221021120000211} is an apocalyptic number.

221021120000211 is a deficient number, since it is larger than the sum of its proper divisors (73688595586749).

221021120000211 is a wasteful number, since it uses less digits than its factorization.

221021120000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722230005.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221021120000211 its reverse (112000021120122), we get a palindrome (333021141120333).

The spelling of 221021120000211 in words is "two hundred twenty-one trillion, twenty-one billion, one hundred twenty million, two hundred eleven", and thus it is an aban number.