1212222101002 has 16 divisors (see below), whose sum is σ = 2047624429824. Its totient is φ = 533235528000.

The previous prime is 1212222100979. The next prime is 1212222101017. The reversal of 1212222101002 is 2001012222121.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 888725199 + ... + 888726562.

It is an arithmetic number, because the mean of its divisors is an integer number (127976526864).

Almost surely, 2^{1212222101002} is an apocalyptic number.

1212222101002 is a deficient number, since it is larger than the sum of its proper divisors (835402328822).

1212222101002 is a wasteful number, since it uses less digits than its factorization.

1212222101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777451805.

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

Adding to 1212222101002 its reverse (2001012222121), we get a palindrome (3213234323123).

The spelling of 1212222101002 in words is "one trillion, two hundred twelve billion, two hundred twenty-two million, one hundred one thousand, two".