101220102121111 has 8 divisors (see below), whose sum is σ = 107176849023600. Its totient is φ = 95263646690688.

The previous prime is 101220102121109. The next prime is 101220102121133. The reversal of 101220102121111 is 111121201022101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101220102121111 - 2¹ = 101220102121109 is a prime.

It is a super-2 number, since 2×101220102121111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220102121181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72152836 + ... + 73542313.

It is an arithmetic number, because the mean of its divisors is an integer number (13397106127950).

Almost surely, 2^{101220102121111} is an apocalyptic number.

101220102121111 is a deficient number, since it is larger than the sum of its proper divisors (5956746902489).

101220102121111 is a wasteful number, since it uses less digits than its factorization.

101220102121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145736033.

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

Adding to 101220102121111 its reverse (111121201022101), we get a palindrome (212341303143212).

The spelling of 101220102121111 in words is "one hundred one trillion, two hundred twenty billion, one hundred two million, one hundred twenty-one thousand, one hundred eleven".