2220121202211 has 80 divisors (see below), whose sum is σ = 3701553549408. Its totient is φ = 1314656179200.

The previous prime is 2220121202207. The next prime is 2220121202231. The reversal of 2220121202211 is 1122021210222.

It is a happy number.

It is not a de Polignac number, because 2220121202211 - 2² = 2220121202207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2220121202231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11283205 + ... + 11478281.

Almost surely, 2^{2220121202211} is an apocalyptic number.

2220121202211 is a deficient number, since it is larger than the sum of its proper divisors (1481432347197).

2220121202211 is a wasteful number, since it uses less digits than its factorization.

2220121202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195394 (or 195385 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2220121202211 its reverse (1122021210222), we get a palindrome (3342142412433).

The spelling of 2220121202211 in words is "two trillion, two hundred twenty billion, one hundred twenty-one million, two hundred two thousand, two hundred eleven".