1210112212021 has 8 divisors (see below), whose sum is σ = 1215281944800. Its totient is φ = 1204947451440.

The previous prime is 1210112211953. The next prime is 1210112212031. The reversal of 1210112212021 is 1202122110121.

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 1210112212021 - 2⁹ = 1210112211509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210112211986 and 1210112212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210112212031) 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, 754851 + ... + 1729168.

It is an arithmetic number, because the mean of its divisors is an integer number (151910243100).

Almost surely, 2^{1210112212021} is an apocalyptic number.

It is an amenable number.

1210112212021 is a deficient number, since it is larger than the sum of its proper divisors (5169732779).

1210112212021 is a wasteful number, since it uses less digits than its factorization.

1210112212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486099.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1210112212021 its reverse (1202122110121), we get a palindrome (2412234322142).

The spelling of 1210112212021 in words is "one trillion, two hundred ten billion, one hundred twelve million, two hundred twelve thousand, twenty-one".