1212020223 has 8 divisors (see below), whose sum is σ = 1617149568. Its totient is φ = 807452184.

The previous prime is 1212020221. The next prime is 1212020263. The reversal of 1212020223 is 3220202121.

It is a happy number.

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

It is not a de Polignac number, because 1212020223 - 2¹ = 1212020221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212020221) 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, 135261 + ... + 143942.

It is an arithmetic number, because the mean of its divisors is an integer number (202143696).

Almost surely, 2^1212020223 is an apocalyptic number.

1212020223 is a deficient number, since it is larger than the sum of its proper divisors (405129345).

1212020223 is a wasteful number, since it uses less digits than its factorization.

1212020223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280653.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1212020223 is about 34814.0808150955. The cubic root of 1212020223 is about 1066.1949522416.

Adding to 1212020223 its reverse (3220202121), we get a palindrome (4432222344).

The spelling of 1212020223 in words is "one billion, two hundred twelve million, twenty thousand, two hundred twenty-three".