1201202121002 has 24 divisors (see below), whose sum is σ = 2035893909024. Its totient is φ = 530296585104.

The previous prime is 1201202121001. The next prime is 1201202121017. The reversal of 1201202121002 is 2001212021021.

It is not an unprimeable number, because it can be changed into a prime (1201202121001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77249888 + ... + 77265435.

It is an arithmetic number, because the mean of its divisors is an integer number (84828912876).

Almost surely, 2^{1201202121002} is an apocalyptic number.

1201202121002 is a deficient number, since it is larger than the sum of its proper divisors (834691788022).

1201202121002 is a wasteful number, since it uses less digits than its factorization.

1201202121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154515374 (or 154515361 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1201202121002 its reverse (2001212021021), we get a palindrome (3202414142023).

The spelling of 1201202121002 in words is "one trillion, two hundred one billion, two hundred two million, one hundred twenty-one thousand, two".