122121212002 has 16 divisors (see below), whose sum is σ = 197136848952. Its totient is φ = 56526693120.

The previous prime is 122121211981. The next prime is 122121212029. The reversal of 122121212002 is 200212121221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 75862235761 + 46258976241 = 275431^2 + 215079^2 .

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, 29438913 + ... + 29443060.

Almost surely, 2^122121212002 is an apocalyptic number.

122121212002 is a deficient number, since it is larger than the sum of its proper divisors (75015636950).

122121212002 is a wasteful number, since it uses less digits than its factorization.

122121212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58882053.

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

Adding to 122121212002 its reverse (200212121221), we get a palindrome (322333333223).

The spelling of 122121212002 in words is "one hundred twenty-two billion, one hundred twenty-one million, two hundred twelve thousand, two".