11021021201210 has 32 divisors (see below), whose sum is σ = 20061194994000. Its totient is φ = 4358775900160.

The previous prime is 11021021201161. The next prime is 11021021201237. The reversal of 11021021201210 is 1210212012011.

It can be written as a sum of positive squares in 8 ways, for example, as 8774137121689 + 2246884079521 = 2962117^2 + 1498961^2 .

It is a super-2 number, since 2×11021021201210² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47810630 + ... + 48040590.

Almost surely, 2^{11021021201210} is an apocalyptic number.

11021021201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11021021201210 is a deficient number, since it is larger than the sum of its proper divisors (9040173792790).

11021021201210 is a wasteful number, since it uses less digits than its factorization.

11021021201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283906.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11021021201210 its reverse (1210212012011), we get a palindrome (12231233213221).

The spelling of 11021021201210 in words is "eleven trillion, twenty-one billion, twenty-one million, two hundred one thousand, two hundred ten".