221120101012 has 6 divisors (see below), whose sum is σ = 386960176778. Its totient is φ = 110560050504.

The previous prime is 221120101003. The next prime is 221120101043. The reversal of 221120101012 is 210101021122.

221120101012 is digitally balanced in base 3, 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., 215234756356 + 5885344656 = 463934^2 + 76716^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221120100983 and 221120101001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27640012623 + ... + 27640012630.

Almost surely, 2^221120101012 is an apocalyptic number.

It is an amenable number.

221120101012 is a deficient number, since it is larger than the sum of its proper divisors (165840075766).

221120101012 is a wasteful number, since it uses less digits than its factorization.

221120101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55280025257 (or 55280025255 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221120101012 its reverse (210101021122), we get a palindrome (431221122134).

The spelling of 221120101012 in words is "two hundred twenty-one billion, one hundred twenty million, one hundred one thousand, twelve".