1000012202220 has 24 divisors (see below), whose sum is σ = 2800034166384. Its totient is φ = 266669920576.

The previous prime is 1000012202183. The next prime is 1000012202239. The reversal of 1000012202220 is 222022100001.

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 = 1000012202196 and 1000012202205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8333434959 + ... + 8333435078.

It is an arithmetic number, because the mean of its divisors is an integer number (116668090266).

Almost surely, 2^{1000012202220} is an apocalyptic number.

1000012202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000012202220 is an abundant number, since it is smaller than the sum of its proper divisors (1800021964164).

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

1000012202220 is a wasteful number, since it uses less digits than its factorization.

1000012202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16666870049 (or 16666870047 counting only the distinct ones).

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

Adding to 1000012202220 its reverse (222022100001), we get a palindrome (1222034302221).

The spelling of 1000012202220 in words is "one trillion, twelve million, two hundred two thousand, two hundred twenty".