1220020111010 has 32 divisors (see below), whose sum is σ = 2324979063360. Its totient is φ = 459651008448.

The previous prime is 1220020111001. The next prime is 1220020111061. The reversal of 1220020111010 is 101110200221.

It is a super-4 number, since 4×1220020111010⁴ (a number of 49 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220020110982 and 1220020111000.

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 15 ways as a sum of consecutive naturals, for example, 18525392 + ... + 18591131.

It is an arithmetic number, because the mean of its divisors is an integer number (72655595730).

Almost surely, 2^{1220020111010} is an apocalyptic number.

1220020111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220020111010 is a deficient number, since it is larger than the sum of its proper divisors (1104958952350).

1220020111010 is a wasteful number, since it uses less digits than its factorization.

1220020111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37116722.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1220020111010 its reverse (101110200221), we get a palindrome (1321130311231).

The spelling of 1220020111010 in words is "one trillion, two hundred twenty billion, twenty million, one hundred eleven thousand, ten".