121212202221202 has 16 divisors (see below), whose sum is σ = 184238744158080. Its totient is φ = 59802084083808.

The previous prime is 121212202221193. The next prime is 121212202221217. The reversal of 121212202221202 is 202122202212121.

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, 699058518 + ... + 699231889.

It is an arithmetic number, because the mean of its divisors is an integer number (11514921509880).

Almost surely, 2^{121212202221202} is an apocalyptic number.

121212202221202 is a deficient number, since it is larger than the sum of its proper divisors (63026541936878).

121212202221202 is a wasteful number, since it uses less digits than its factorization.

121212202221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398290985.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 121212202221202 its reverse (202122202212121), we get a palindrome (323334404433323).

The spelling of 121212202221202 in words is "one hundred twenty-one trillion, two hundred twelve billion, two hundred two million, two hundred twenty-one thousand, two hundred two".