121001200000202 has 4 divisors (see below), whose sum is σ = 181501800000306. Its totient is φ = 60500600000100.

The previous prime is 121001200000199. The next prime is 121001200000231. The reversal of 121001200000202 is 202000002100121.

It is a happy number.

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., 105864735105481 + 15136464894721 = 10289059^2 + 3890561^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30250300000049 + ... + 30250300000052.

Almost surely, 2^{121001200000202} is an apocalyptic number.

121001200000202 is a deficient number, since it is larger than the sum of its proper divisors (60500600000104).

121001200000202 is an equidigital number, since it uses as much as digits as its factorization.

121001200000202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60500600000103.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 121001200000202 its reverse (202000002100121), we get a palindrome (323001202100323).

The spelling of 121001200000202 in words is "one hundred twenty-one trillion, one billion, two hundred million, two hundred two", and thus it is an aban number.