1010221010111 has 4 divisors (see below), whose sum is σ = 1014632455800. Its totient is φ = 1005809564424.

The previous prime is 1010221010069. The next prime is 1010221010143. The reversal of 1010221010111 is 1110101220101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010221010111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010221010092 and 1010221010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010221010171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2205722501 + ... + 2205722958.

It is an arithmetic number, because the mean of its divisors is an integer number (253658113950).

Almost surely, 2^{1010221010111} is an apocalyptic number.

1010221010111 is a deficient number, since it is larger than the sum of its proper divisors (4411445689).

1010221010111 is an equidigital number, since it uses as much as digits as its factorization.

1010221010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4411445688.

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

Adding to 1010221010111 its reverse (1110101220101), we get a palindrome (2120322230212).

The spelling of 1010221010111 in words is "one trillion, ten billion, two hundred twenty-one million, ten thousand, one hundred eleven".