121121200100202 has 32 divisors (see below), whose sum is σ = 244093598267904. Its totient is φ = 40065205455600.

The previous prime is 121121200100183. The next prime is 121121200100231. The reversal of 121121200100202 is 202001002121121.

It is a super-2 number, since 2×121121200100202² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105706003 + ... + 106845689.

It is an arithmetic number, because the mean of its divisors is an integer number (7627924945872).

Almost surely, 2^{121121200100202} is an apocalyptic number.

121121200100202 is an abundant number, since it is smaller than the sum of its proper divisors (122972398167702).

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

121121200100202 is a wasteful number, since it uses less digits than its factorization.

121121200100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275034.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121121200100202 its reverse (202001002121121), we get a palindrome (323122202221323).

The spelling of 121121200100202 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred million, one hundred thousand, two hundred two".