1020021211101 has 8 divisors (see below), whose sum is σ = 1379183609664. Its totient is φ = 670436476640.

The previous prime is 1020021211091. The next prime is 1020021211151. The reversal of 1020021211101 is 1011121200201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020021211101 - 2¹⁵ = 1020021178333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020021211151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2394415776 + ... + 2394416201.

It is an arithmetic number, because the mean of its divisors is an integer number (172397951208).

Almost surely, 2^{1020021211101} is an apocalyptic number.

It is an amenable number.

1020021211101 is a deficient number, since it is larger than the sum of its proper divisors (359162398563).

1020021211101 is an equidigital number, since it uses as much as digits as its factorization.

1020021211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4788832051.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1020021211101 its reverse (1011121200201), we get a palindrome (2031142411302).

The spelling of 1020021211101 in words is "one trillion, twenty billion, twenty-one million, two hundred eleven thousand, one hundred one".