1321212122233 has 8 divisors (see below), whose sum is σ = 1322070873120. Its totient is φ = 1320353508480.

The previous prime is 1321212122221. The next prime is 1321212122257. The reversal of 1321212122233 is 3322212121231.

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 1321212122233 - 2³⁷ = 1183773168761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1321212122198 and 1321212122207.

It is not an unprimeable number, because it can be changed into a prime (1321212122203) 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, 25011273 + ... + 25064041.

It is an arithmetic number, because the mean of its divisors is an integer number (165258859140).

Almost surely, 2^{1321212122233} is an apocalyptic number.

It is an amenable number.

1321212122233 is a deficient number, since it is larger than the sum of its proper divisors (858750887).

1321212122233 is a wasteful number, since it uses less digits than its factorization.

1321212122233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68567.

The product of its digits is 1728, while the sum is 25.

Adding to 1321212122233 its reverse (3322212121231), we get a palindrome (4643424243464).

The spelling of 1321212122233 in words is "one trillion, three hundred twenty-one billion, two hundred twelve million, one hundred twenty-two thousand, two hundred thirty-three".