1220102221210 has 8 divisors (see below), whose sum is σ = 2196183998196. Its totient is φ = 488040888480.

The previous prime is 1220102221189. The next prime is 1220102221213. The reversal of 1220102221210 is 121222010221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1216567086361 + 3535134849 = 1102981^2 + 59457^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1220102221213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61005111051 + ... + 61005111070.

Almost surely, 2^{1220102221210} is an apocalyptic number.

1220102221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220102221210 is a deficient number, since it is larger than the sum of its proper divisors (976081776986).

1220102221210 is a wasteful number, since it uses less digits than its factorization.

1220102221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122010222128.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1220102221210 its reverse (121222010221), we get a palindrome (1341324231431).

The spelling of 1220102221210 in words is "one trillion, two hundred twenty billion, one hundred two million, two hundred twenty-one thousand, two hundred ten".