121213202 has 12 divisors (see below), whose sum is σ = 199851918. Its totient is φ = 55096800.

The previous prime is 121213201. The next prime is 121213219. The reversal of 121213202 is 202312121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 107143201 + 14070001 = 10351^2 + 3751^2 .

It is not an unprimeable number, because it can be changed into a prime (121213201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250199 + ... + 250682.

Almost surely, 2^121213202 is an apocalyptic number.

121213202 is a deficient number, since it is larger than the sum of its proper divisors (78638716).

121213202 is a wasteful number, since it uses less digits than its factorization.

121213202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500905 (or 500894 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121213202 is about 11009.6867348713. The cubic root of 121213202 is about 494.8990740737.

Adding to 121213202 its reverse (202312121), we get a palindrome (323525323).

The spelling of 121213202 in words is "one hundred twenty-one million, two hundred thirteen thousand, two hundred two".