1021110022101 has 64 divisors (see below), whose sum is σ = 1534179999744. Its totient is φ = 599850316800.

The previous prime is 1021110022081. The next prime is 1021110022129. The reversal of 1021110022101 is 1012200111201.

It is a de Polignac number, because none of the positive numbers 2^k-1021110022101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021110022001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28808476 + ... + 28843898.

It is an arithmetic number, because the mean of its divisors is an integer number (23971562496).

Almost surely, 2^{1021110022101} is an apocalyptic number.

It is an amenable number.

1021110022101 is a deficient number, since it is larger than the sum of its proper divisors (513069977643).

1021110022101 is a wasteful number, since it uses less digits than its factorization.

1021110022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35794.

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

Adding to 1021110022101 its reverse (1012200111201), we get a palindrome (2033310133302).

It can be divided in two parts, 10211100 and 22101, that added together give a palindrome (10233201).

The spelling of 1021110022101 in words is "one trillion, twenty-one billion, one hundred ten million, twenty-two thousand, one hundred one".