1220001011010 has 64 divisors (see below), whose sum is σ = 3259962322560. Its totient is φ = 324670973760.

The previous prime is 1220001011003. The next prime is 1220001011057. The reversal of 1220001011010 is 101101000221.

It is a happy number.

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 = 1220001010983 and 1220001011001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4468777 + ... + 4733916.

It is an arithmetic number, because the mean of its divisors is an integer number (50936911290).

Almost surely, 2^{1220001011010} is an apocalyptic number.

1220001011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220001011010 is an abundant number, since it is smaller than the sum of its proper divisors (2039961311550).

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

1220001011010 is a wasteful number, since it uses less digits than its factorization.

1220001011010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9203200 (or 9203194 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1220001011010 its reverse (101101000221), we get a palindrome (1321102011231).

The spelling of 1220001011010 in words is "one trillion, two hundred twenty billion, one million, eleven thousand, ten".