101222021111 has 2 divisors, whose sum is σ = 101222021112. Its totient is φ = 101222021110.

The previous prime is 101222021101. The next prime is 101222021119. The reversal of 101222021111 is 111120222101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101222021111 - 2¹⁰ = 101222020087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101222021119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50611010555 + 50611010556.

It is an arithmetic number, because the mean of its divisors is an integer number (50611010556).

Almost surely, 2^101222021111 is an apocalyptic number.

101222021111 is a deficient number, since it is larger than the sum of its proper divisors (1).

101222021111 is an equidigital number, since it uses as much as digits as its factorization.

101222021111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101222021111 its reverse (111120222101), we get a palindrome (212342243212).

The spelling of 101222021111 in words is "one hundred one billion, two hundred twenty-two million, twenty-one thousand, one hundred eleven".