1212200010222 has 64 divisors (see below), whose sum is σ = 2592335646720. Its totient is φ = 376759573344.

The previous prime is 1212200010193. The next prime is 1212200010223. The reversal of 1212200010222 is 2220100022121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212200010223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8814763 + ... + 8951225.

It is an arithmetic number, because the mean of its divisors is an integer number (40505244480).

Almost surely, 2^{1212200010222} is an apocalyptic number.

1212200010222 is an abundant number, since it is smaller than the sum of its proper divisors (1380135636498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212200010222 is a wasteful number, since it uses less digits than its factorization.

1212200010222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137717.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1212200010222 its reverse (2220100022121), we get a palindrome (3432300032343).

The spelling of 1212200010222 in words is "one trillion, two hundred twelve billion, two hundred million, ten thousand, two hundred twenty-two".