1101020221211 has 4 divisors (see below), whose sum is σ = 1104910752312. Its totient is φ = 1097129690112.

The previous prime is 1101020221187. The next prime is 1101020221271. The reversal of 1101020221211 is 1121220201011.

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

It is a cyclic number.

It is not a de Polignac number, because 1101020221211 - 2³⁴ = 1083840352027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101020221271) 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, 1945265126 + ... + 1945265691.

It is an arithmetic number, because the mean of its divisors is an integer number (276227688078).

Almost surely, 2^{1101020221211} is an apocalyptic number.

1101020221211 is a deficient number, since it is larger than the sum of its proper divisors (3890531101).

1101020221211 is an equidigital number, since it uses as much as digits as its factorization.

1101020221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3890531100.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1101020221211 its reverse (1121220201011), we get a palindrome (2222240422222).

It can be divided in two parts, 1101020 and 221211, that added together give a palindrome (1322231).

The spelling of 1101020221211 in words is "one trillion, one hundred one billion, twenty million, two hundred twenty-one thousand, two hundred eleven".