1020111220012 has 6 divisors (see below), whose sum is σ = 1785194635028. Its totient is φ = 510055610004.

The previous prime is 1020111219917. The next prime is 1020111220013. The reversal of 1020111220012 is 2100221110201.

It is a junction number, because it is equal to n+sod(n) for n = 1020111219974 and 1020111220001.

It is not an unprimeable number, because it can be changed into a prime (1020111220013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127513902498 + ... + 127513902505.

Almost surely, 2^{1020111220012} is an apocalyptic number.

It is an amenable number.

1020111220012 is a deficient number, since it is larger than the sum of its proper divisors (765083415016).

1020111220012 is a wasteful number, since it uses less digits than its factorization.

1020111220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255027805007 (or 255027805005 counting only the distinct ones).

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

Adding to 1020111220012 its reverse (2100221110201), we get a palindrome (3120332330213).

The spelling of 1020111220012 in words is "one trillion, twenty billion, one hundred eleven million, two hundred twenty thousand, twelve".