1211100102022 has 4 divisors (see below), whose sum is σ = 1816650153036. Its totient is φ = 605550051010.

The previous prime is 1211100101987. The next prime is 1211100102059. The reversal of 1211100102022 is 2202010011121.

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 = 1211100101993 and 1211100102011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302775025504 + ... + 302775025507.

It is an arithmetic number, because the mean of its divisors is an integer number (454162538259).

Almost surely, 2^{1211100102022} is an apocalyptic number.

1211100102022 is a deficient number, since it is larger than the sum of its proper divisors (605550051014).

1211100102022 is an equidigital number, since it uses as much as digits as its factorization.

1211100102022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605550051013.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1211100102022 its reverse (2202010011121), we get a palindrome (3413110113143).

Subtracting 1211100102022 from its reverse (2202010011121), we obtain a palindrome (990909909099).

The spelling of 1211100102022 in words is "one trillion, two hundred eleven billion, one hundred million, one hundred two thousand, twenty-two".