1212200112022 has 8 divisors (see below), whose sum is σ = 1819349394336. Its totient is φ = 605750313912.

The previous prime is 1212200111981. The next prime is 1212200112023. The reversal of 1212200112022 is 2202110022121.

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 2×1212200112022² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212200111987 and 1212200112005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212200112023) 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, 174866718 + ... + 174873649.

It is an arithmetic number, because the mean of its divisors is an integer number (227418674292).

Almost surely, 2^{1212200112022} is an apocalyptic number.

1212200112022 is a deficient number, since it is larger than the sum of its proper divisors (607149282314).

1212200112022 is a wasteful number, since it uses less digits than its factorization.

1212200112022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349742102.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212200112022 its reverse (2202110022121), we get a palindrome (3414310134143).

The spelling of 1212200112022 in words is "one trillion, two hundred twelve billion, two hundred million, one hundred twelve thousand, twenty-two".