101221011211101 has 8 divisors (see below), whose sum is σ = 136477767925440. Its totient is φ = 66722464318752.

The previous prime is 101221011211051. The next prime is 101221011211109. The reversal of 101221011211101 is 101112110122101.

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

It is not a de Polignac number, because 101221011211101 - 2¹¹ = 101221011209053 is a prime.

It is a super-2 number, since 2×101221011211101² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221011211109) 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, 189552455185 + ... + 189552455718.

It is an arithmetic number, because the mean of its divisors is an integer number (17059720990680).

Almost surely, 2^{101221011211101} is an apocalyptic number.

It is an amenable number.

101221011211101 is a deficient number, since it is larger than the sum of its proper divisors (35256756714339).

101221011211101 is an equidigital number, since it uses as much as digits as its factorization.

101221011211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379104910995.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 101221011211101 its reverse (101112110122101), we get a palindrome (202333121333202).

The spelling of 101221011211101 in words is "one hundred one trillion, two hundred twenty-one billion, eleven million, two hundred eleven thousand, one hundred one".