121311130220202 has 64 divisors (see below), whose sum is σ = 264675884175360. Its totient is φ = 36842458910400.

The previous prime is 121311130220167. The next prime is 121311130220213. The reversal of 121311130220202 is 202022031113121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16578177 + ... + 22747707.

It is an arithmetic number, because the mean of its divisors is an integer number (4135560690240).

Almost surely, 2^{121311130220202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121311130220202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132337942087680).

121311130220202 is an abundant number, since it is smaller than the sum of its proper divisors (143364753955158).

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

121311130220202 is a wasteful number, since it uses less digits than its factorization.

121311130220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6172819.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 121311130220202 its reverse (202022031113121), we get a palindrome (323333161333323).

The spelling of 121311130220202 in words is "one hundred twenty-one trillion, three hundred eleven billion, one hundred thirty million, two hundred twenty thousand, two hundred two".