1021101101011 has 4 divisors (see below), whose sum is σ = 1022460757024. Its totient is φ = 1019741445000.

The previous prime is 1021101100969. The next prime is 1021101101029. The reversal of 1021101101011 is 1101011011201.

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 1021101101011 - 2¹⁵ = 1021101068243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021101401011) 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, 679826880 + ... + 679828381.

It is an arithmetic number, because the mean of its divisors is an integer number (255615189256).

Almost surely, 2^{1021101101011} is an apocalyptic number.

1021101101011 is a deficient number, since it is larger than the sum of its proper divisors (1359656013).

1021101101011 is an equidigital number, since it uses as much as digits as its factorization.

1021101101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359656012.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 1021101101011 its reverse (1101011011201), we get a palindrome (2122112112212).

The spelling of 1021101101011 in words is "one trillion, twenty-one billion, one hundred one million, one hundred one thousand, eleven".