101020211121 has 8 divisors (see below), whose sum is σ = 134695221760. Its totient is φ = 67346003952.

The previous prime is 101020211111. The next prime is 101020211129. The reversal of 101020211121 is 121112020101.

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

It is not a de Polignac number, because 101020211121 - 2²¹ = 101018113969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101020211097 and 101020211106.

It is not an unprimeable number, because it can be changed into a prime (101020211129) 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, 216240 + ... + 498798.

It is an arithmetic number, because the mean of its divisors is an integer number (16836902720).

Almost surely, 2^101020211121 is an apocalyptic number.

It is an amenable number.

101020211121 is a deficient number, since it is larger than the sum of its proper divisors (33675010639).

101020211121 is a wasteful number, since it uses less digits than its factorization.

101020211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401735.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101020211121 its reverse (121112020101), we get a palindrome (222132231222).

The spelling of 101020211121 in words is "one hundred one billion, twenty million, two hundred eleven thousand, one hundred twenty-one".