1212020122 has 8 divisors (see below), whose sum is σ = 1831908672. Its totient is φ = 601383900.

The previous prime is 1212020093. The next prime is 1212020123. The reversal of 1212020122 is 2210202121.

It is a happy number.

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

It is a super-2 number, since 2×1212020122² = 2937985552265789768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212020123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2312754 + ... + 2313277.

It is an arithmetic number, because the mean of its divisors is an integer number (228988584).

Almost surely, 2^1212020122 is an apocalyptic number.

1212020122 is a deficient number, since it is larger than the sum of its proper divisors (619888550).

1212020122 is a wasteful number, since it uses less digits than its factorization.

1212020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4626164.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1212020122 is about 34814.0793645330. The cubic root of 1212020122 is about 1066.1949226255.

Adding to 1212020122 its reverse (2210202121), we get a palindrome (3422222243).

The spelling of 1212020122 in words is "one billion, two hundred twelve million, twenty thousand, one hundred twenty-two".