1010102121221 has 8 divisors (see below), whose sum is σ = 1029578194944. Its totient is φ = 990755457120.

The previous prime is 1010102121157. The next prime is 1010102121319. The reversal of 1010102121221 is 1221212010101.

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 1010102121221 - 2⁶ = 1010102121157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010102121196 and 1010102121205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010102121521) 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, 32336645 + ... + 32367866.

It is an arithmetic number, because the mean of its divisors is an integer number (128697274368).

Almost surely, 2^{1010102121221} is an apocalyptic number.

It is an amenable number.

1010102121221 is a deficient number, since it is larger than the sum of its proper divisors (19476073723).

1010102121221 is an equidigital number, since it uses as much as digits as its factorization.

1010102121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64704811.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1010102121221 its reverse (1221212010101), we get a palindrome (2231314131322).

The spelling of 1010102121221 in words is "one trillion, ten billion, one hundred two million, one hundred twenty-one thousand, two hundred twenty-one".