1201222121102 has 16 divisors (see below), whose sum is σ = 1813034932272. Its totient is φ = 596883555840.

The previous prime is 1201222121069. The next prime is 1201222121117. The reversal of 1201222121102 is 2011212221021.

It is a congruent number.

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, 1227653 + ... + 1977264.

It is an arithmetic number, because the mean of its divisors is an integer number (113314683267).

Almost surely, 2^{1201222121102} is an apocalyptic number.

1201222121102 is a deficient number, since it is larger than the sum of its proper divisors (611812811170).

1201222121102 is a wasteful number, since it uses less digits than its factorization.

1201222121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206083.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1201222121102 its reverse (2011212221021), we get a palindrome (3212434342123).

The spelling of 1201222121102 in words is "one trillion, two hundred one billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred two".