1101020021021 has 8 divisors (see below), whose sum is σ = 1159235758080. Its totient is φ = 1042831015488.

The previous prime is 1101020020999. The next prime is 1101020021029. The reversal of 1101020021021 is 1201200201011.

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 1101020021021 - 2²² = 1101015826717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101020020993 and 1101020021011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101020021029) 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, 6598301 + ... + 6763106.

It is an arithmetic number, because the mean of its divisors is an integer number (144904469760).

Almost surely, 2^{1101020021021} is an apocalyptic number.

It is an amenable number.

1101020021021 is a deficient number, since it is larger than the sum of its proper divisors (58215737059).

1101020021021 is a wasteful number, since it uses less digits than its factorization.

1101020021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13365763.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1101020021021 its reverse (1201200201011), we get a palindrome (2302220222032).

The spelling of 1101020021021 in words is "one trillion, one hundred one billion, twenty million, twenty-one thousand, twenty-one".