121000120202 has 32 divisors (see below), whose sum is σ = 202350793680. Its totient is φ = 53880744960.

The previous prime is 121000120187. The next prime is 121000120217. The reversal of 121000120202 is 202021000121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121000120187) and next prime (121000120217).

It can be written as a sum of positive squares in 8 ways, for example, as 44293832521 + 76706287681 = 210461^2 + 276959^2 .

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, 976802 + ... + 1093682.

Almost surely, 2^121000120202 is an apocalyptic number.

121000120202 is a deficient number, since it is larger than the sum of its proper divisors (81350673478).

121000120202 is a wasteful number, since it uses less digits than its factorization.

121000120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118298.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 121000120202 its reverse (202021000121), we get a palindrome (323021120323).

The spelling of 121000120202 in words is "one hundred twenty-one billion, one hundred twenty thousand, two hundred two".