1220020211210 has 8 divisors (see below), whose sum is σ = 2196036380196. Its totient is φ = 488008084480.

The previous prime is 1220020211183. The next prime is 1220020211213. The reversal of 1220020211210 is 121120200221.

It can be written as a sum of positive squares in 2 ways, for example, as 1212599594761 + 7420616449 = 1101181^2 + 86143^2 .

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 (1220020211213) 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, 61001010551 + ... + 61001010570.

Almost surely, 2^{1220020211210} is an apocalyptic number.

1220020211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220020211210 is a deficient number, since it is larger than the sum of its proper divisors (976016168986).

1220020211210 is a wasteful number, since it uses less digits than its factorization.

1220020211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122002021128.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220020211210 its reverse (121120200221), we get a palindrome (1341140411431).

The spelling of 1220020211210 in words is "one trillion, two hundred twenty billion, twenty million, two hundred eleven thousand, two hundred ten".