221102121201124 has 6 divisors (see below), whose sum is σ = 386928712101974. Its totient is φ = 110551060600560.

The previous prime is 221102121201079. The next prime is 221102121201133. The reversal of 221102121201124 is 421102121201122.

221102121201124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 174614024505600 + 46488096695524 = 13214160^2 + 6818218^2 .

It is a super-2 number, since 2×221102121201124² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221102121201095 and 221102121201104.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27637765150137 + ... + 27637765150144.

Almost surely, 2^{221102121201124} is an apocalyptic number.

It is an amenable number.

221102121201124 is a deficient number, since it is larger than the sum of its proper divisors (165826590900850).

221102121201124 is a wasteful number, since it uses less digits than its factorization.

221102121201124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55275530300285 (or 55275530300283 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 221102121201124 its reverse (421102121201122), we get a palindrome (642204242402246).

The spelling of 221102121201124 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred twenty-one million, two hundred one thousand, one hundred twenty-four".