1010111220101 has 16 divisors (see below), whose sum is σ = 1044638193984. Its totient is φ = 976093300224.

The previous prime is 1010111220091. The next prime is 1010111220137. The reversal of 1010111220101 is 1010221110101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010111220101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010111220301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11790446 + ... + 11875808.

It is an arithmetic number, because the mean of its divisors is an integer number (65289887124).

Almost surely, 2^{1010111220101} is an apocalyptic number.

It is an amenable number.

1010111220101 is a deficient number, since it is larger than the sum of its proper divisors (34526973883).

1010111220101 is an equidigital number, since it uses as much as digits as its factorization.

1010111220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88340.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1010111220101 its reverse (1010221110101), we get a palindrome (2020332330202).

The spelling of 1010111220101 in words is "one trillion, ten billion, one hundred eleven million, two hundred twenty thousand, one hundred one".