1301221020220 has 48 divisors (see below), whose sum is σ = 3077139695616. Its totient is φ = 457907688000.

The previous prime is 1301221020193. The next prime is 1301221020301. The reversal of 1301221020220 is 220201221031.

It is a happy number.

It is a super-2 number, since 2×1301221020220² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1301221020194 and 1301221020203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95390616 + ... + 95404255.

It is an arithmetic number, because the mean of its divisors is an integer number (64107076992).

Almost surely, 2^{1301221020220} is an apocalyptic number.

1301221020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301221020220 is an abundant number, since it is smaller than the sum of its proper divisors (1775918675396).

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

1301221020220 is a wasteful number, since it uses less digits than its factorization.

1301221020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190794922 (or 190794920 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1301221020220 its reverse (220201221031), we get a palindrome (1521422241251).

The spelling of 1301221020220 in words is "one trillion, three hundred one billion, two hundred twenty-one million, twenty thousand, two hundred twenty".