221012111000211 has 16 divisors (see below), whose sum is σ = 302656080729504. Its totient is φ = 143355007609344.

The previous prime is 221012111000207. The next prime is 221012111000237. The reversal of 221012111000211 is 112000111210122.

It is a happy number.

It is not a de Polignac number, because 221012111000211 - 2² = 221012111000207 is a prime.

It is a super-2 number, since 2×221012111000211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221012111002211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25354870 + ... + 32937723.

It is an arithmetic number, because the mean of its divisors is an integer number (18916005045594).

Almost surely, 2^{221012111000211} is an apocalyptic number.

221012111000211 is a deficient number, since it is larger than the sum of its proper divisors (81643969729293).

221012111000211 is a wasteful number, since it uses less digits than its factorization.

221012111000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58326790.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 221012111000211 its reverse (112000111210122), we get a palindrome (333012222210333).

The spelling of 221012111000211 in words is "two hundred twenty-one trillion, twelve billion, one hundred eleven million, two hundred eleven", and thus it is an aban number.