2121000210322 has 12 divisors (see below), whose sum is σ = 3700928938590. Its totient is φ = 909000090096.

The previous prime is 2121000210299. The next prime is 2121000210337. The reversal of 2121000210322 is 2230120001212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1316891658481 + 804108551841 = 1147559^2 + 896721^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2121000210296 and 2121000210305.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10821429547 + ... + 10821429742.

Almost surely, 2^{2121000210322} is an apocalyptic number.

2121000210322 is a deficient number, since it is larger than the sum of its proper divisors (1579928728268).

2121000210322 is a wasteful number, since it uses less digits than its factorization.

2121000210322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21642859305 (or 21642859298 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2121000210322 its reverse (2230120001212), we get a palindrome (4351120211534).

The spelling of 2121000210322 in words is "two trillion, one hundred twenty-one billion, two hundred ten thousand, three hundred twenty-two".