101011020121 has 8 divisors (see below), whose sum is σ = 116675830944. Its totient is φ = 86426541120.

The previous prime is 101011020091. The next prime is 101011020157. The reversal of 101011020121 is 121020110101.

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 101011020121 - 2¹⁵ = 101010987353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101011020098 and 101011020107.

It is not an unprimeable number, because it can be changed into a prime (101011020161) 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, 270082755 + ... + 270083128.

It is an arithmetic number, because the mean of its divisors is an integer number (14584478868).

Almost surely, 2^101011020121 is an apocalyptic number.

101011020121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101011020121 is a deficient number, since it is larger than the sum of its proper divisors (15664810823).

101011020121 is a wasteful number, since it uses less digits than its factorization.

101011020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540165911.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101011020121 its reverse (121020110101), we get a palindrome (222031130222).

The spelling of 101011020121 in words is "one hundred one billion, eleven million, twenty thousand, one hundred twenty-one".