221200211000012 has 24 divisors (see below), whose sum is σ = 388283968932720. Its totient is φ = 110262233568960.

The previous prime is 221200210999981. The next prime is 221200211000099. The reversal of 221200211000012 is 210000112002122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34469462 + ... + 40379997.

It is an arithmetic number, because the mean of its divisors is an integer number (16178498705530).

Almost surely, 2^{221200211000012} is an apocalyptic number.

It is an amenable number.

221200211000012 is a deficient number, since it is larger than the sum of its proper divisors (167083757932708).

221200211000012 is a wasteful number, since it uses less digits than its factorization.

221200211000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74851721 (or 74851719 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221200211000012 its reverse (210000112002122), we get a palindrome (431200323002134).

The spelling of 221200211000012 in words is "two hundred twenty-one trillion, two hundred billion, two hundred eleven million, twelve", and thus it is an aban number.