121221201001202 has 4 divisors (see below), whose sum is σ = 181831801501806. Its totient is φ = 60610600500600.

The previous prime is 121221201001181. The next prime is 121221201001223. The reversal of 121221201001202 is 202100102122121.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (121221201001181) and next prime (121221201001223).

It can be written as a sum of positive squares in only one way, i.e., 113209408480081 + 8011792521121 = 10639991^2 + 2830511^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30305300250299 + ... + 30305300250302.

Almost surely, 2^{121221201001202} is an apocalyptic number.

121221201001202 is a deficient number, since it is larger than the sum of its proper divisors (60610600500604).

121221201001202 is an equidigital number, since it uses as much as digits as its factorization.

121221201001202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60610600500603.

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

Adding to 121221201001202 its reverse (202100102122121), we get a palindrome (323321303123323).

The spelling of 121221201001202 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, two hundred one million, one thousand, two hundred two".