1100121001211 has 4 divisors (see below), whose sum is σ = 1123527831072. Its totient is φ = 1076714171352.

The previous prime is 1100121001193. The next prime is 1100121001229. The reversal of 1100121001211 is 1121001210011.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1100121001193) and next prime (1100121001229).

It is a cyclic number.

It is not a de Polignac number, because 1100121001211 - 2²² = 1100116806907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100121001192 and 1100121001201.

It is not an unprimeable number, because it can be changed into a prime (1100121004211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11703414860 + ... + 11703414953.

It is an arithmetic number, because the mean of its divisors is an integer number (280881957768).

Almost surely, 2^{1100121001211} is an apocalyptic number.

1100121001211 is a deficient number, since it is larger than the sum of its proper divisors (23406829861).

1100121001211 is an equidigital number, since it uses as much as digits as its factorization.

1100121001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23406829860.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1100121001211 its reverse (1121001210011), we get a palindrome (2221122211222).

The spelling of 1100121001211 in words is "one trillion, one hundred billion, one hundred twenty-one million, one thousand, two hundred eleven".