1212200100022 has 16 divisors (see below), whose sum is σ = 1821152300400. Its totient is φ = 605149604640.

The previous prime is 1212200099993. The next prime is 1212200100037. The reversal of 1212200100022 is 2200010022121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1212200099975 and 1212200100011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9381129 + ... + 9509467.

It is an arithmetic number, because the mean of its divisors is an integer number (113822018775).

Almost surely, 2^{1212200100022} is an apocalyptic number.

1212200100022 is a deficient number, since it is larger than the sum of its proper divisors (608952200378).

1212200100022 is a wasteful number, since it uses less digits than its factorization.

1212200100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135711.

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

Adding to 1212200100022 its reverse (2200010022121), we get a palindrome (3412210122143).

The spelling of 1212200100022 in words is "one trillion, two hundred twelve billion, two hundred million, one hundred thousand, twenty-two".