1220000212210 has 32 divisors (see below), whose sum is σ = 2365613233200. Its totient is φ = 450330236928.

The previous prime is 1220000212199. The next prime is 1220000212213. The reversal of 1220000212210 is 122120000221.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 464124725289 + 755875486921 = 681267^2 + 869411^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (1220000212213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 920535 + ... + 1813114.

Almost surely, 2^{1220000212210} is an apocalyptic number.

1220000212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220000212210 is a deficient number, since it is larger than the sum of its proper divisors (1145613020990).

1220000212210 is a wasteful number, since it uses less digits than its factorization.

1220000212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737102.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1220000212210 its reverse (122120000221), we get a palindrome (1342120212431).

The spelling of 1220000212210 in words is "one trillion, two hundred twenty billion, two hundred twelve thousand, two hundred ten".