1220000012122 has 8 divisors (see below), whose sum is σ = 1830605386176. Its totient is φ = 609798216732.

The previous prime is 1220000012041. The next prime is 1220000012123. The reversal of 1220000012122 is 2212100000221.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1220000012123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100887108 + ... + 100899199.

It is an arithmetic number, because the mean of its divisors is an integer number (228825673272).

Almost surely, 2^{1220000012122} is an apocalyptic number.

1220000012122 is a deficient number, since it is larger than the sum of its proper divisors (610605374054).

1220000012122 is a wasteful number, since it uses less digits than its factorization.

1220000012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201789332.

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

Adding to 1220000012122 its reverse (2212100000221), we get a palindrome (3432100012343).

The spelling of 1220000012122 in words is "one trillion, two hundred twenty billion, twelve thousand, one hundred twenty-two".