1211110120222 has 4 divisors (see below), whose sum is σ = 1816665180336. Its totient is φ = 605555060110.

The previous prime is 1211110120201. The next prime is 1211110120343. The reversal of 1211110120222 is 2220210111121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1211110120196 and 1211110120205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302777530054 + ... + 302777530057.

It is an arithmetic number, because the mean of its divisors is an integer number (454166295084).

Almost surely, 2^{1211110120222} is an apocalyptic number.

1211110120222 is a deficient number, since it is larger than the sum of its proper divisors (605555060114).

1211110120222 is an equidigital number, since it uses as much as digits as its factorization.

1211110120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605555060113.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1211110120222 its reverse (2220210111121), we get a palindrome (3431320231343).

The spelling of 1211110120222 in words is "one trillion, two hundred eleven billion, one hundred ten million, one hundred twenty thousand, two hundred twenty-two".