1201220101002 has 16 divisors (see below), whose sum is σ = 2403111130272. Its totient is φ = 400294878960.

The previous prime is 1201220100989. The next prime is 1201220101007. The reversal of 1201220101002 is 2001010221021.

It is not an unprimeable number, because it can be changed into a prime (1201220101007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27932068 + ... + 27975039.

It is an arithmetic number, because the mean of its divisors is an integer number (150194445642).

Almost surely, 2^{1201220101002} is an apocalyptic number.

1201220101002 is an abundant number, since it is smaller than the sum of its proper divisors (1201891029270).

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

1201220101002 is a wasteful number, since it uses less digits than its factorization.

1201220101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55910693.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1201220101002 its reverse (2001010221021), we get a palindrome (3202230322023).

The spelling of 1201220101002 in words is "one trillion, two hundred one billion, two hundred twenty million, one hundred one thousand, two".