1012121231223 has 8 divisors (see below), whose sum is σ = 1349508492928. Its totient is φ = 674740728504.

The previous prime is 1012121231179. The next prime is 1012121231281. The reversal of 1012121231223 is 3221321212101.

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

It is not a de Polignac number, because 1012121231223 - 2²⁴ = 1012104454007 is a prime.

It is a super-2 number, since 2×1012121231223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012121231223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012121231293) 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, 1329361 + ... + 1947162.

It is an arithmetic number, because the mean of its divisors is an integer number (168688561616).

Almost surely, 2^{1012121231223} is an apocalyptic number.

1012121231223 is a deficient number, since it is larger than the sum of its proper divisors (337387261705).

1012121231223 is a wasteful number, since it uses less digits than its factorization.

1012121231223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3379493.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1012121231223 its reverse (3221321212101), we get a palindrome (4233442443324).

The spelling of 1012121231223 in words is "one trillion, twelve billion, one hundred twenty-one million, two hundred thirty-one thousand, two hundred twenty-three".