1221211000112 has 10 divisors (see below), whose sum is σ = 2366096312748. Its totient is φ = 610605500048.

The previous prime is 1221211000019. The next prime is 1221211000187. The reversal of 1221211000112 is 2110001121221.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38162843738 + ... + 38162843769.

Almost surely, 2^{1221211000112} is an apocalyptic number.

It is an amenable number.

1221211000112 is a deficient number, since it is larger than the sum of its proper divisors (1144885312636).

1221211000112 is an equidigital number, since it uses as much as digits as its factorization.

1221211000112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76325687515 (or 76325687509 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1221211000112 its reverse (2110001121221), we get a palindrome (3331212121333).

It can be divided in two parts, 1221 and 211000112, that multiplied together give a palindrome (257631136752).

The spelling of 1221211000112 in words is "one trillion, two hundred twenty-one billion, two hundred eleven million, one hundred twelve", and thus it is an aban number.