2102201234 has 12 divisors (see below), whose sum is σ = 3668126814. Its totient is φ = 900943344.

The previous prime is 2102201201. The next prime is 2102201237. The reversal of 2102201234 is 4321022012.

It can be written as a sum of positive squares in only one way, i.e., 1608250609 + 493950625 = 40103^2 + 22225^2 .

It is a super-2 number, since 2×2102201234² = 8838500056462245512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2102201237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10725419 + ... + 10725614.

Almost surely, 2^2102201234 is an apocalyptic number.

2102201234 is a deficient number, since it is larger than the sum of its proper divisors (1565925580).

2102201234 is a wasteful number, since it uses less digits than its factorization.

2102201234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21451049 (or 21451042 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2102201234 is about 45849.7680910166. The cubic root of 2102201234 is about 1281.0264459489.

Adding to 2102201234 its reverse (4321022012), we get a palindrome (6423223246).

The spelling of 2102201234 in words is "two billion, one hundred two million, two hundred one thousand, two hundred thirty-four".