10002000011220 has 240 divisors, whose sum is σ = 35886722699520. Its totient is φ = 2284405410816.

The previous prime is 10002000011209. The next prime is 10002000011231. The reversal of 10002000011220 is 2211000020001.

It is an interprime number because it is at equal distance from previous prime (10002000011209) and next prime (10002000011231).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 14367961 + ... + 15047999.

It is an arithmetic number, because the mean of its divisors is an integer number (149528011248).

Almost surely, 2^{10002000011220} is an apocalyptic number.

10002000011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10002000011220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17943361349760).

10002000011220 is an abundant number, since it is smaller than the sum of its proper divisors (25884722688300).

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

10002000011220 is a wasteful number, since it uses less digits than its factorization.

10002000011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681364 (or 681353 counting only the distinct ones).

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

Adding to 10002000011220 its reverse (2211000020001), we get a palindrome (12213000031221).

The spelling of 10002000011220 in words is "ten trillion, two billion, eleven thousand, two hundred twenty".