101111100021121 has 8 divisors (see below), whose sum is σ = 105508375910784. Its totient is φ = 96713919223680.

The previous prime is 101111100021091. The next prime is 101111100021137. The reversal of 101111100021121 is 121120001111101.

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 101111100021121 - 2¹³ = 101111100012929 is a prime.

It is a super-2 number, since 2×101111100021121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101111100021181) 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, 21595981 + ... + 25857466.

It is an arithmetic number, because the mean of its divisors is an integer number (13188546988848).

Almost surely, 2^{101111100021121} is an apocalyptic number.

It is an amenable number.

101111100021121 is a deficient number, since it is larger than the sum of its proper divisors (4397275889663).

101111100021121 is an equidigital number, since it uses as much as digits as its factorization.

101111100021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47546111.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 101111100021121 its reverse (121120001111101), we get a palindrome (222231101132222).

The spelling of 101111100021121 in words is "one hundred one trillion, one hundred eleven billion, one hundred million, twenty-one thousand, one hundred twenty-one".