1011121212202 has 4 divisors (see below), whose sum is σ = 1516681818306. Its totient is φ = 505560606100.

The previous prime is 1011121212181. The next prime is 1011121212209. The reversal of 1011121212202 is 2022121211101.

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., 616650543441 + 394470668761 = 785271^2 + 628069^2 .

It is a super-2 number, since 2×1011121212202² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1011121212209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252780303049 + ... + 252780303052.

Almost surely, 2^{1011121212202} is an apocalyptic number.

1011121212202 is a deficient number, since it is larger than the sum of its proper divisors (505560606104).

1011121212202 is an equidigital number, since it uses as much as digits as its factorization.

1011121212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505560606103.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1011121212202 its reverse (2022121211101), we get a palindrome (3033242423303).

The spelling of 1011121212202 in words is "one trillion, eleven billion, one hundred twenty-one million, two hundred twelve thousand, two hundred two".