2231121210202 has 16 divisors (see below), whose sum is σ = 3455573082624. Its totient is φ = 1079282970000.

The previous prime is 2231121210191. The next prime is 2231121210203. The reversal of 2231121210202 is 2020121211322.

It is a super-3 number, since 3×2231121210202³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2231121210202.

It is not an unprimeable number, because it can be changed into a prime (2231121210203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4632174 + ... + 5091097.

It is an arithmetic number, because the mean of its divisors is an integer number (215973317664).

Almost surely, 2^{2231121210202} is an apocalyptic number.

2231121210202 is a deficient number, since it is larger than the sum of its proper divisors (1224451872422).

2231121210202 is a wasteful number, since it uses less digits than its factorization.

2231121210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9727005.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2231121210202 its reverse (2020121211322), we get a palindrome (4251242421524).

The spelling of 2231121210202 in words is "two trillion, two hundred thirty-one billion, one hundred twenty-one million, two hundred ten thousand, two hundred two".