101021102009 has 8 divisors (see below), whose sum is σ = 102003781440. Its totient is φ = 100039438800.

The previous prime is 101021101999. The next prime is 101021102023. The reversal of 101021102009 is 900201120101.

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 101021102009 - 2¹² = 101021097913 is a prime.

It is a super-2 number, since 2×101021102009² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101021102069) 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, 53507 + ... + 452664.

It is an arithmetic number, because the mean of its divisors is an integer number (12750472680).

Almost surely, 2^101021102009 is an apocalyptic number.

It is an amenable number.

101021102009 is a deficient number, since it is larger than the sum of its proper divisors (982679431).

101021102009 is a wasteful number, since it uses less digits than its factorization.

101021102009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508111.

The product of its (nonzero) digits is 36, while the sum is 17.

It can be divided in two parts, 10102 and 1102009, that added together give a palindrome (1112111).

The spelling of 101021102009 in words is "one hundred one billion, twenty-one million, one hundred two thousand, nine".