1011211101222 has 32 divisors (see below), whose sum is σ = 2391041030400. Its totient is φ = 278954786208.

The previous prime is 1011211101217. The next prime is 1011211101239. The reversal of 1011211101222 is 2221011121101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415110072 + ... + 415112507.

It is an arithmetic number, because the mean of its divisors is an integer number (74720032200).

Almost surely, 2^{1011211101222} is an apocalyptic number.

1011211101222 is an abundant number, since it is smaller than the sum of its proper divisors (1379829929178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011211101222 is a wasteful number, since it uses less digits than its factorization.

1011211101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830222620.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1011211101222 its reverse (2221011121101), we get a palindrome (3232222222323).

The spelling of 1011211101222 in words is "one trillion, eleven billion, two hundred eleven million, one hundred one thousand, two hundred twenty-two".