1222121302 has 4 divisors (see below), whose sum is σ = 1833181956. Its totient is φ = 611060650.

The previous prime is 1222121293. The next prime is 1222121357. The reversal of 1222121302 is 2031212221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305530324 + ... + 305530327.

It is an arithmetic number, because the mean of its divisors is an integer number (458295489).

Almost surely, 2^1222121302 is an apocalyptic number.

1222121302 is a deficient number, since it is larger than the sum of its proper divisors (611060654).

1222121302 is an equidigital number, since it uses as much as digits as its factorization.

1222121302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611060653.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1222121302 is about 34958.8515543632. The cubic root of 1222121302 is about 1069.1486814543.

Adding to 1222121302 its reverse (2031212221), we get a palindrome (3253333523).

The spelling of 1222121302 in words is "one billion, two hundred twenty-two million, one hundred twenty-one thousand, three hundred two".