121202022122 has 8 divisors (see below), whose sum is σ = 182478881700. Its totient is φ = 60375728224.

The previous prime is 121202022107. The next prime is 121202022211. The reversal of 121202022122 is 221220202121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 120520759921 + 681262201 = 347161^2 + 26101^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121202022122.

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 3 ways as a sum of consecutive naturals, for example, 112640747 + ... + 112641822.

Almost surely, 2^121202022122 is an apocalyptic number.

121202022122 is a deficient number, since it is larger than the sum of its proper divisors (61276859578).

121202022122 is a wasteful number, since it uses less digits than its factorization.

121202022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225282840.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121202022122 its reverse (221220202121), we get a palindrome (342422224243).

The spelling of 121202022122 in words is "one hundred twenty-one billion, two hundred two million, twenty-two thousand, one hundred twenty-two".