1220213212133 has 8 divisors (see below), whose sum is σ = 1293055332000. Its totient is φ = 1148233129488.

The previous prime is 1220213212129. The next prime is 1220213212181. The reversal of 1220213212133 is 3312123120221.

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 1220213212133 - 2² = 1220213212129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220213212099 and 1220213212108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220213212103) 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, 215506391 + ... + 215512052.

It is an arithmetic number, because the mean of its divisors is an integer number (161631916500).

Almost surely, 2^{1220213212133} is an apocalyptic number.

It is an amenable number.

1220213212133 is a deficient number, since it is larger than the sum of its proper divisors (72842119867).

1220213212133 is a wasteful number, since it uses less digits than its factorization.

1220213212133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431018611.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1220213212133 its reverse (3312123120221), we get a palindrome (4532336332354).

The spelling of 1220213212133 in words is "one trillion, two hundred twenty billion, two hundred thirteen million, two hundred twelve thousand, one hundred thirty-three".