2120111212202 has 4 divisors (see below), whose sum is σ = 3180166818306. Its totient is φ = 1060055606100.

The previous prime is 2120111212201. The next prime is 2120111212231. The reversal of 2120111212202 is 2022121110212.

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., 1832934191881 + 287177020321 = 1353859^2 + 535889^2 .

It is not an unprimeable number, because it can be changed into a prime (2120111212201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530027803049 + ... + 530027803052.

Almost surely, 2^{2120111212202} is an apocalyptic number.

2120111212202 is a deficient number, since it is larger than the sum of its proper divisors (1060055606104).

2120111212202 is a wasteful number, since it uses less digits than its factorization.

2120111212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060055606103.

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

Adding to 2120111212202 its reverse (2022121110212), we get a palindrome (4142232322414).

The spelling of 2120111212202 in words is "two trillion, one hundred twenty billion, one hundred eleven million, two hundred twelve thousand, two hundred two".