1221010212023 has 8 divisors (see below), whose sum is σ = 1477524962592. Its totient is φ = 985016641536.

The previous prime is 1221010212017. The next prime is 1221010212031. The reversal of 1221010212023 is 3202120101221.

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 1221010212023 - 2¹² = 1221010207927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 1221010211992 and 1221010212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221010212083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5130294890 + ... + 5130295127.

It is an arithmetic number, because the mean of its divisors is an integer number (184690620324).

Almost surely, 2^{1221010212023} is an apocalyptic number.

1221010212023 is a deficient number, since it is larger than the sum of its proper divisors (256514750569).

1221010212023 is a wasteful number, since it uses less digits than its factorization.

1221010212023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10260590041.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1221010212023 its reverse (3202120101221), we get a palindrome (4423130313244).

The spelling of 1221010212023 in words is "one trillion, two hundred twenty-one billion, ten million, two hundred twelve thousand, twenty-three".