1220100211202 has 4 divisors (see below), whose sum is σ = 1830150316806. Its totient is φ = 610050105600.

The previous prime is 1220100211181. The next prime is 1220100211241. The reversal of 1220100211202 is 2021120010221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1200315256921 + 19784954281 = 1095589^2 + 140659^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305025052799 + ... + 305025052802.

Almost surely, 2^{1220100211202} is an apocalyptic number.

1220100211202 is a deficient number, since it is larger than the sum of its proper divisors (610050105604).

1220100211202 is an equidigital number, since it uses as much as digits as its factorization.

1220100211202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610050105603.

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

Adding to 1220100211202 its reverse (2021120010221), we get a palindrome (3241220221423).

The spelling of 1220100211202 in words is "one trillion, two hundred twenty billion, one hundred million, two hundred eleven thousand, two hundred two".