121222012022002 has 4 divisors (see below), whose sum is σ = 181833018033006. Its totient is φ = 60611006011000.

The previous prime is 121222012021951. The next prime is 121222012022009. The reversal of 121222012022002 is 200220210222121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 94492377876961 + 26729634145041 = 9720719^2 + 5170071^2 .

It is not an unprimeable number, because it can be changed into a prime (121222012022009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30305503005499 + ... + 30305503005502.

Almost surely, 2^{121222012022002} is an apocalyptic number.

121222012022002 is a deficient number, since it is larger than the sum of its proper divisors (60611006011004).

121222012022002 is an equidigital number, since it uses as much as digits as its factorization.

121222012022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60611006011003.

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

Adding to 121222012022002 its reverse (200220210222121), we get a palindrome (321442222244123).

The spelling of 121222012022002 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, twelve million, twenty-two thousand, two".