1211101012222 has 16 divisors (see below), whose sum is σ = 1915166563200. Its totient is φ = 572808884760.

The previous prime is 1211101012211. The next prime is 1211101012223. The reversal of 1211101012222 is 2222101011121.

It is a junction number, because it is equal to n+sod(n) for n = 1211101012196 and 1211101012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211101012223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24156354 + ... + 24206437.

It is an arithmetic number, because the mean of its divisors is an integer number (119697910200).

Almost surely, 2^{1211101012222} is an apocalyptic number.

1211101012222 is a deficient number, since it is larger than the sum of its proper divisors (704065550978).

1211101012222 is a wasteful number, since it uses less digits than its factorization.

1211101012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48363471.

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

Adding to 1211101012222 its reverse (2222101011121), we get a palindrome (3433202023343).

The spelling of 1211101012222 in words is "one trillion, two hundred eleven billion, one hundred one million, twelve thousand, two hundred twenty-two".