1211101010222 has 8 divisors (see below), whose sum is σ = 1816657544136. Its totient is φ = 605548495512.

The previous prime is 1211101010219. The next prime is 1211101010261. The reversal of 1211101010222 is 2220101011121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1211101010197 and 1211101010206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81968 + ... + 1558499.

It is an arithmetic number, because the mean of its divisors is an integer number (227082193017).

Almost surely, 2^{1211101010222} is an apocalyptic number.

1211101010222 is a deficient number, since it is larger than the sum of its proper divisors (605556533914).

1211101010222 is a wasteful number, since it uses less digits than its factorization.

1211101010222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009602.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1211101010222 its reverse (2220101011121), we get a palindrome (3431202021343).

The spelling of 1211101010222 in words is "one trillion, two hundred eleven billion, one hundred one million, ten thousand, two hundred twenty-two".