1220020210 has 16 divisors (see below), whose sum is σ = 2311617600. Its totient is φ = 462323376.

The previous prime is 1220020199. The next prime is 1220020247. The reversal of 1220020210 is 120200221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3210390 + ... + 3210769.

It is an arithmetic number, because the mean of its divisors is an integer number (144476100).

Almost surely, 2^1220020210 is an apocalyptic number.

1220020210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220020210 is a deficient number, since it is larger than the sum of its proper divisors (1091597390).

1220020210 is a wasteful number, since it uses less digits than its factorization.

1220020210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6421185.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1220020210 is about 34928.7876972563. The cubic root of 1220020210 is about 1068.5356303857.

Adding to 1220020210 its reverse (120200221), we get a palindrome (1340220431).

The spelling of 1220020210 in words is "one billion, two hundred twenty million, twenty thousand, two hundred ten".