1200000221012 has 48 divisors (see below), whose sum is σ = 2235965098752. Its totient is φ = 562755123840.

The previous prime is 1200000220999. The next prime is 1200000221033. The reversal of 1200000221012 is 2101220000021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1200000220984 and 1200000221002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 971939 + ... + 1828842.

It is an arithmetic number, because the mean of its divisors is an integer number (46582606224).

Almost surely, 2^{1200000221012} is an apocalyptic number.

It is an amenable number.

1200000221012 is a deficient number, since it is larger than the sum of its proper divisors (1035964877740).

1200000221012 is a wasteful number, since it uses less digits than its factorization.

1200000221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800928 (or 2800926 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1200000221012 its reverse (2101220000021), we get a palindrome (3301220221033).

The spelling of 1200000221012 in words is "one trillion, two hundred billion, two hundred twenty-one thousand, twelve".