1201221210102 has 32 divisors (see below), whose sum is σ = 2532177456480. Its totient is φ = 379305588480.

The previous prime is 1201221210023. The next prime is 1201221210149. The reversal of 1201221210102 is 2010121221021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65118799 + ... + 65137242.

It is an arithmetic number, because the mean of its divisors is an integer number (79130545515).

Almost surely, 2^{1201221210102} is an apocalyptic number.

1201221210102 is an abundant number, since it is smaller than the sum of its proper divisors (1330956246378).

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

1201221210102 is a wasteful number, since it uses less digits than its factorization.

1201221210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130256128.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1201221210102 its reverse (2010121221021), we get a palindrome (3211342431123).

The spelling of 1201221210102 in words is "one trillion, two hundred one billion, two hundred twenty-one million, two hundred ten thousand, one hundred two".