1211101022 has 8 divisors (see below), whose sum is σ = 1818845400. Its totient is φ = 604819224.

The previous prime is 1211101019. The next prime is 1211101027. The reversal of 1211101022 is 2201011121.

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 = 1211100994 and 1211101012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211101027) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 363572 + ... + 366887.

It is an arithmetic number, because the mean of its divisors is an integer number (227355675).

Almost surely, 2^1211101022 is an apocalyptic number.

1211101022 is a deficient number, since it is larger than the sum of its proper divisors (607744378).

1211101022 is an equidigital number, since it uses as much as digits as its factorization.

1211101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731290.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1211101022 is about 34800.8767418294. The cubic root of 1211101022 is about 1065.9253485640.

Adding to 1211101022 its reverse (2201011121), we get a palindrome (3412112143).

The spelling of 1211101022 in words is "one billion, two hundred eleven million, one hundred one thousand, twenty-two".