1220210000010 has 48 divisors (see below), whose sum is σ = 3172966700904. Its totient is φ = 325346184576.

The previous prime is 1220209999973. The next prime is 1220210000039. The reversal of 1220210000010 is 100000120221.

It can be written as a sum of positive squares in 4 ways, for example, as 1118058808689 + 102151191321 = 1057383^2 + 319611^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1220209999947 and 1220210000001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213577 + ... + 1576716.

Almost surely, 2^{1220210000010} is an apocalyptic number.

1220210000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220210000010 is an abundant number, since it is smaller than the sum of its proper divisors (1952756700894).

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

1220210000010 is a wasteful number, since it uses less digits than its factorization.

1220210000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797879 (or 1797876 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1220210000010 its reverse (100000120221), we get a palindrome (1320210120231).

The spelling of 1220210000010 in words is "one trillion, two hundred twenty billion, two hundred ten million, ten", and thus it is an aban number.