10212121120101 has 8 divisors (see below), whose sum is σ = 13839377255904. Its totient is φ = 6696472865520.

The previous prime is 10212121120079. The next prime is 10212121120133. The reversal of 10212121120101 is 10102112121201.

It is a happy number.

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

It is not a de Polignac number, because 10212121120101 - 2¹³ = 10212121111909 is a prime.

It is a super-2 number, since 2×10212121120101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212121120501) 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, 27901970091 + ... + 27901970456.

It is an arithmetic number, because the mean of its divisors is an integer number (1729922156988).

Almost surely, 2^{10212121120101} is an apocalyptic number.

It is an amenable number.

10212121120101 is a deficient number, since it is larger than the sum of its proper divisors (3627256135803).

10212121120101 is an equidigital number, since it uses as much as digits as its factorization.

10212121120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55803940611.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10212121120101 its reverse (10102112121201), we get a palindrome (20314233241302).

The spelling of 10212121120101 in words is "ten trillion, two hundred twelve billion, one hundred twenty-one million, one hundred twenty thousand, one hundred one".