1211140121222 has 8 divisors (see below), whose sum is σ = 1819060391376. Its totient is φ = 604786657432.

The previous prime is 1211140121189. The next prime is 1211140121251. The reversal of 1211140121222 is 2221210411121.

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 = 1211140121194 and 1211140121203.

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, 391699658 + ... + 391702749.

It is an arithmetic number, because the mean of its divisors is an integer number (227382548922).

Almost surely, 2^{1211140121222} is an apocalyptic number.

1211140121222 is a deficient number, since it is larger than the sum of its proper divisors (607920270154).

1211140121222 is an equidigital number, since it uses as much as digits as its factorization.

1211140121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783403182.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 1211140121222 its reverse (2221210411121), we get a palindrome (3432350532343).

The spelling of 1211140121222 in words is "one trillion, two hundred eleven billion, one hundred forty million, one hundred twenty-one thousand, two hundred twenty-two".