101000221221111 has 16 divisors (see below), whose sum is σ = 135158423337984. Its totient is φ = 67087944915264.

The previous prime is 101000221221101. The next prime is 101000221221127. The reversal of 101000221221111 is 111122122000101.

It is a happy number.

It is not a de Polignac number, because 101000221221111 - 2⁵ = 101000221221079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101000221221101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22295881 + ... + 26440626.

It is an arithmetic number, because the mean of its divisors is an integer number (8447401458624).

Almost surely, 2^{101000221221111} is an apocalyptic number.

101000221221111 is a deficient number, since it is larger than the sum of its proper divisors (34158202116873).

101000221221111 is a wasteful number, since it uses less digits than its factorization.

101000221221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48739030.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101000221221111 its reverse (111122122000101), we get a palindrome (212122343221212).

The spelling of 101000221221111 in words is "one hundred one trillion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred eleven".