1000222012020 has 144 divisors (see below), whose sum is σ = 3518136445824. Its totient is φ = 207838329600.

The previous prime is 1000222012019. The next prime is 1000222012079. The reversal of 1000222012020 is 202102220001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1000222011987 and 1000222012005.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 9790011 + ... + 9891650.

It is an arithmetic number, because the mean of its divisors is an integer number (24431503096).

Almost surely, 2^{1000222012020} is an apocalyptic number.

1000222012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000222012020 is an abundant number, since it is smaller than the sum of its proper divisors (2517914433804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000222012020 is a wasteful number, since it uses less digits than its factorization.

1000222012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19681702 (or 19681689 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1000222012020 its reverse (202102220001), we get a palindrome (1202324232021).

It can be divided in two parts, 10002 and 22012020, that added together give a palindrome (22022022).

The spelling of 1000222012020 in words is "one trillion, two hundred twenty-two million, twelve thousand, twenty".