2203262266921 has 9 divisors (see below), whose sum is σ = 2206918310583. Its totient is φ = 2199612277320.

The previous prime is 2203262266817. The next prime is 2203262266963. The reversal of 2203262266921 is 1296622623022.

The square root of 2203262266921 is 1484339.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1450914202521 + 752348064400 = 1204539^2 + 867380^2 .

It is not a de Polignac number, because 2203262266921 - 2¹¹ = 2203262264873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2203262266981) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1574882980 + ... + 1574884378.

Almost surely, 2^{2203262266921} is an apocalyptic number.

2203262266921 is the 1484339-th square number.

2203262266921 is the 742170-th centered octagonal number.

It is an amenable number.

2203262266921 is a deficient number, since it is larger than the sum of its proper divisors (3656043662).

2203262266921 is an frugal number, since it uses more digits than its factorization.

2203262266921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4920 (or 2460 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 43.

Adding to 2203262266921 its reverse (1296622623022), we get a palindrome (3499884889943).

The spelling of 2203262266921 in words is "two trillion, two hundred three billion, two hundred sixty-two million, two hundred sixty-six thousand, nine hundred twenty-one".