1212101121202 has 4 divisors (see below), whose sum is σ = 1818151681806. Its totient is φ = 606050560600.

The previous prime is 1212101121197. The next prime is 1212101121211. The reversal of 1212101121202 is 2021211012121.

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., 1121716110321 + 90385010881 = 1059111^2 + 300641^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303025280299 + ... + 303025280302.

Almost surely, 2^{1212101121202} is an apocalyptic number.

1212101121202 is a deficient number, since it is larger than the sum of its proper divisors (606050560604).

1212101121202 is an equidigital number, since it uses as much as digits as its factorization.

1212101121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606050560603.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1212101121202 its reverse (2021211012121), we get a palindrome (3233312133323).

The spelling of 1212101121202 in words is "one trillion, two hundred twelve billion, one hundred one million, one hundred twenty-one thousand, two hundred two".