2121110212202 has 4 divisors (see below), whose sum is σ = 3181665318306. Its totient is φ = 1060555106100.

The previous prime is 2121110212063. The next prime is 2121110212213. The reversal of 2121110212202 is 2022120111212.

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., 1168083246841 + 953026965361 = 1080779^2 + 976231^2 .

It is a super-2 number, since 2×2121110212202² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530277553049 + ... + 530277553052.

Almost surely, 2^{2121110212202} is an apocalyptic number.

2121110212202 is a deficient number, since it is larger than the sum of its proper divisors (1060555106104).

2121110212202 is a wasteful number, since it uses less digits than its factorization.

2121110212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060555106103.

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

Adding to 2121110212202 its reverse (2022120111212), we get a palindrome (4143230323414).

The spelling of 2121110212202 in words is "two trillion, one hundred twenty-one billion, one hundred ten million, two hundred twelve thousand, two hundred two".