121121144202 has 24 divisors (see below), whose sum is σ = 245196117504. Its totient is φ = 39887270824.

The previous prime is 121121144189. The next prime is 121121144231. The reversal of 121121144202 is 202441121121.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1423818 + ... + 1506485.

It is an arithmetic number, because the mean of its divisors is an integer number (10216504896).

Almost surely, 2^121121144202 is an apocalyptic number.

121121144202 is an abundant number, since it is smaller than the sum of its proper divisors (124074973302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121121144202 is an equidigital number, since it uses as much as digits as its factorization.

121121144202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2930474 (or 2930391 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121121144202 its reverse (202441121121), we get a palindrome (323562265323).

The spelling of 121121144202 in words is "one hundred twenty-one billion, one hundred twenty-one million, one hundred forty-four thousand, two hundred two".