121202122222 has 16 divisors (see below), whose sum is σ = 186961964400. Its totient is φ = 58904549440.

The previous prime is 121202122219. The next prime is 121202122253. The reversal of 121202122222 is 222221202121.

It is a super-2 number, since 2×121202122222² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121202122222.

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, 5759929 + ... + 5780932.

It is an arithmetic number, because the mean of its divisors is an integer number (11685122775).

Almost surely, 2^121202122222 is an apocalyptic number.

121202122222 is a deficient number, since it is larger than the sum of its proper divisors (65759842178).

121202122222 is a wasteful number, since it uses less digits than its factorization.

121202122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11541011.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 121202122222 its reverse (222221202121), we get a palindrome (343423324343).

The spelling of 121202122222 in words is "one hundred twenty-one billion, two hundred two million, one hundred twenty-two thousand, two hundred twenty-two".