1220000210010 has 24 divisors (see below), whose sum is σ = 3172000546260. Its totient is φ = 325333389312.

The previous prime is 1220000209997. The next prime is 1220000210027. The reversal of 1220000210010 is 100120000221.

It can be written as a sum of positive squares in 2 ways, for example, as 1219935713049 + 64496961 = 1104507^2 + 8031^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1220000209974 and 1220000210001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6777778855 + ... + 6777779034.

Almost surely, 2^{1220000210010} is an apocalyptic number.

1220000210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220000210010 is an abundant number, since it is smaller than the sum of its proper divisors (1952000336250).

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

1220000210010 is a wasteful number, since it uses less digits than its factorization.

1220000210010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13555557902 (or 13555557899 counting only the distinct ones).

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

Adding to 1220000210010 its reverse (100120000221), we get a palindrome (1320120210231).

The spelling of 1220000210010 in words is "one trillion, two hundred twenty billion, two hundred ten thousand, ten".