1220100000210 has 192 divisors, whose sum is σ = 3942228745728. Its totient is φ = 254928218112.

The previous prime is 1220100000193. The next prime is 1220100000247. The reversal of 1220100000210 is 120000010221.

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 = 1220100000192 and 1220100000201.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 120394 + ... + 1566746.

It is an arithmetic number, because the mean of its divisors is an integer number (20532441384).

Almost surely, 2^{1220100000210} is an apocalyptic number.

1220100000210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220100000210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1971114372864).

1220100000210 is an abundant number, since it is smaller than the sum of its proper divisors (2722128745518).

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

1220100000210 is a wasteful number, since it uses less digits than its factorization.

1220100000210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446489 (or 1446486 counting only the distinct ones).

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

Adding to 1220100000210 its reverse (120000010221), we get a palindrome (1340100010431).

The spelling of 1220100000210 in words is "one trillion, two hundred twenty billion, one hundred million, two hundred ten", and thus it is an aban number.