2121202200212 has 6 divisors (see below), whose sum is σ = 3712103850378. Its totient is φ = 1060601100104.

The previous prime is 2121202200209. The next prime is 2121202200239. The reversal of 2121202200212 is 2120022021212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1399048958596 + 722153241616 = 1182814^2 + 849796^2 .

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, 265150275023 + ... + 265150275030.

It is an arithmetic number, because the mean of its divisors is an integer number (618683975063).

Almost surely, 2^{2121202200212} is an apocalyptic number.

It is an amenable number.

2121202200212 is a deficient number, since it is larger than the sum of its proper divisors (1590901650166).

2121202200212 is a wasteful number, since it uses less digits than its factorization.

2121202200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530300550057 (or 530300550055 counting only the distinct ones).

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

Adding to 2121202200212 its reverse (2120022021212), we get a palindrome (4241224221424).

The spelling of 2121202200212 in words is "two trillion, one hundred twenty-one billion, two hundred two million, two hundred thousand, two hundred twelve".