1010111221010 has 16 divisors (see below), whose sum is σ = 1824405664536. Its totient is φ = 402665495808.

The previous prime is 1010111221003. The next prime is 1010111221033. The reversal of 1010111221010 is 101221110101.

It can be written as a sum of positive squares in 4 ways, for example, as 970029979801 + 40081241209 = 984901^2 + 200203^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1010111220982 and 1010111221000.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 172370999 + ... + 172376858.

Almost surely, 2^{1010111221010} is an apocalyptic number.

1010111221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1010111221010 is a deficient number, since it is larger than the sum of its proper divisors (814294443526).

1010111221010 is a wasteful number, since it uses less digits than its factorization.

1010111221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344748157.

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

Adding to 1010111221010 its reverse (101221110101), we get a palindrome (1111332331111).

The spelling of 1010111221010 in words is "one trillion, ten billion, one hundred eleven million, two hundred twenty-one thousand, ten".