2121200212022 has 4 divisors (see below), whose sum is σ = 3181800318036. Its totient is φ = 1060600106010.

The previous prime is 2121200212007. The next prime is 2121200212067. The reversal of 2121200212022 is 2202120021212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530300053004 + ... + 530300053007.

It is an arithmetic number, because the mean of its divisors is an integer number (795450079509).

Almost surely, 2^{2121200212022} is an apocalyptic number.

2121200212022 is a deficient number, since it is larger than the sum of its proper divisors (1060600106014).

2121200212022 is a wasteful number, since it uses less digits than its factorization.

2121200212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060600106013.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2121200212022 its reverse (2202120021212), we get a palindrome (4323320233234).

The spelling of 2121200212022 in words is "two trillion, one hundred twenty-one billion, two hundred million, two hundred twelve thousand, twenty-two".