121121002012202 has 4 divisors (see below), whose sum is σ = 181681503018306. Its totient is φ = 60560501006100.

The previous prime is 121121002012183. The next prime is 121121002012237. The reversal of 121121002012202 is 202210200121121.

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

It can be written as a sum of positive squares in only one way, i.e., 110463904652761 + 10657097359441 = 10510181^2 + 3264521^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30280250503049 + ... + 30280250503052.

Almost surely, 2^{121121002012202} is an apocalyptic number.

121121002012202 is a deficient number, since it is larger than the sum of its proper divisors (60560501006104).

121121002012202 is an equidigital number, since it uses as much as digits as its factorization.

121121002012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60560501006103.

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

Adding to 121121002012202 its reverse (202210200121121), we get a palindrome (323331202133323).

The spelling of 121121002012202 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two million, twelve thousand, two hundred two".