101001212121 has 8 divisors (see below), whose sum is σ = 134796664800. Its totient is φ = 67269950432.

The previous prime is 101001212119. The next prime is 101001212153. The reversal of 101001212121 is 121212100101.

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 101001212121 - 2¹ = 101001212119 is a prime.

It is a super-2 number, since 2×101001212121² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101001212097 and 101001212106.

It is not an unprimeable number, because it can be changed into a prime (101001222121) 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, 16044075 + ... + 16050368.

It is an arithmetic number, because the mean of its divisors is an integer number (16849583100).

Almost surely, 2^101001212121 is an apocalyptic number.

It is an amenable number.

101001212121 is a deficient number, since it is larger than the sum of its proper divisors (33795452679).

101001212121 is a wasteful number, since it uses less digits than its factorization.

101001212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32095495.

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

Adding to 101001212121 its reverse (121212100101), we get a palindrome (222213312222).

It can be divided in two parts, 10100 and 1212121, that added together give a palindrome (1222221).

The spelling of 101001212121 in words is "one hundred one billion, one million, two hundred twelve thousand, one hundred twenty-one".