1020100220012 has 24 divisors (see below), whose sum is σ = 1803323934720. Its totient is φ = 504872560080.

The previous prime is 1020100219967. The next prime is 1020100220059. The reversal of 1020100220012 is 2100220010201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1020100219975 and 1020100220002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441212 + ... + 1494947.

It is an arithmetic number, because the mean of its divisors is an integer number (75138497280).

Almost surely, 2^{1020100220012} is an apocalyptic number.

It is an amenable number.

1020100220012 is a deficient number, since it is larger than the sum of its proper divisors (783223714708).

1020100220012 is a wasteful number, since it uses less digits than its factorization.

1020100220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937501 (or 1937499 counting only the distinct ones).

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

Adding to 1020100220012 its reverse (2100220010201), we get a palindrome (3120320230213).

The spelling of 1020100220012 in words is "one trillion, twenty billion, one hundred million, two hundred twenty thousand, twelve".