101021111221121 has 8 divisors (see below), whose sum is σ = 124333675349184. Its totient is φ = 79928791295760.

The previous prime is 101021111221097. The next prime is 101021111221127. The reversal of 101021111221121 is 121122111120101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101021111221121 is a prime.

It is a super-3 number, since 3×101021111221121³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101021111221121.

It is not an unprimeable number, because it can be changed into a prime (101021111221127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555061050575 + ... + 555061050756.

It is an arithmetic number, because the mean of its divisors is an integer number (15541709418648).

Almost surely, 2^{101021111221121} is an apocalyptic number.

It is an amenable number.

101021111221121 is a deficient number, since it is larger than the sum of its proper divisors (23312564128063).

101021111221121 is a wasteful number, since it uses less digits than its factorization.

101021111221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110122101351.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 101021111221121 its reverse (121122111120101), we get a palindrome (222143222341222).

The spelling of 101021111221121 in words is "one hundred one trillion, twenty-one billion, one hundred eleven million, two hundred twenty-one thousand, one hundred twenty-one".