1202212121222 has 16 divisors (see below), whose sum is σ = 2074062043680. Its totient is φ = 511952021568.

The previous prime is 1202212121213. The next prime is 1202212121237. The reversal of 1202212121222 is 2221212122021.

It is a junction number, because it is equal to n+sod(n) for n = 1202212121194 and 1202212121203.

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, 273476447 + ... + 273480842.

It is an arithmetic number, because the mean of its divisors is an integer number (129628877730).

Almost surely, 2^{1202212121222} is an apocalyptic number.

1202212121222 is a deficient number, since it is larger than the sum of its proper divisors (871849922458).

1202212121222 is a wasteful number, since it uses less digits than its factorization.

1202212121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546957455.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1202212121222 its reverse (2221212122021), we get a palindrome (3423424243243).

The spelling of 1202212121222 in words is "one trillion, two hundred two billion, two hundred twelve million, one hundred twenty-one thousand, two hundred twenty-two".