121222121212002 has 16 divisors (see below), whose sum is σ = 242451913390272. Its totient is φ = 40406095242960.

The previous prime is 121222121211943. The next prime is 121222121212043. The reversal of 121222121212002 is 200212121222121.

It is a super-2 number, since 2×121222121212002² (a number of 29 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 121222121212002.

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, 319418149 + ... + 319797432.

It is an arithmetic number, because the mean of its divisors is an integer number (15153244586892).

Almost surely, 2^{121222121212002} is an apocalyptic number.

121222121212002 is an abundant number, since it is smaller than the sum of its proper divisors (121229792178270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121222121212002 is a wasteful number, since it uses less digits than its factorization.

121222121212002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639247193.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121222121212002 its reverse (200212121222121), we get a palindrome (321434242434123).

The spelling of 121222121212002 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred twelve thousand, two".