101212222012121 has 8 divisors (see below), whose sum is σ = 110435314715904. Its totient is φ = 91992792910320.

The previous prime is 101212222012087. The next prime is 101212222012123. The reversal of 101212222012121 is 121210222212101.

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 101212222012121 - 2²² = 101212217817817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101212222012093 and 101212222012102.

It is not an unprimeable number, because it can be changed into a prime (101212222012123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915842726 + ... + 915953231.

It is an arithmetic number, because the mean of its divisors is an integer number (13804414339488).

Almost surely, 2^{101212222012121} is an apocalyptic number.

101212222012121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101212222012121 is a deficient number, since it is larger than the sum of its proper divisors (9223092703783).

101212222012121 is a wasteful number, since it uses less digits than its factorization.

101212222012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831800991.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 101212222012121 its reverse (121210222212101), we get a palindrome (222422444224222).

The spelling of 101212222012121 in words is "one hundred one trillion, two hundred twelve billion, two hundred twenty-two million, twelve thousand, one hundred twenty-one".