1021220000210 has 8 divisors (see below), whose sum is σ = 1838196000396. Its totient is φ = 408488000080.

The previous prime is 1021220000167. The next prime is 1021220000231. The reversal of 1021220000210 is 120000221201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 926258030929 + 94961969281 = 962423^2 + 308159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1021220000191 and 1021220000200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51061000001 + ... + 51061000020.

Almost surely, 2^{1021220000210} is an apocalyptic number.

1021220000210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021220000210 is a deficient number, since it is larger than the sum of its proper divisors (816976000186).

1021220000210 is a wasteful number, since it uses less digits than its factorization.

1021220000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102122000028.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1021220000210 its reverse (120000221201), we get a palindrome (1141220221411).

The spelling of 1021220000210 in words is "one trillion, twenty-one billion, two hundred twenty million, two hundred ten", and thus it is an aban number.