11002121210 has 32 divisors (see below), whose sum is σ = 20697964560. Its totient is φ = 4205279232.

The previous prime is 11002121167. The next prime is 11002121213. The reversal of 11002121210 is 1212120011.

It can be written as a sum of positive squares in 8 ways, for example, as 7539622561 + 3462498649 = 86831^2 + 58843^2 .

It is a super-2 number, since 2×11002121210² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11002121191 and 11002121200.

It is not an unprimeable number, because it can be changed into a prime (11002121213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167429 + ... + 223688.

Almost surely, 2^11002121210 is an apocalyptic number.

11002121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11002121210 is a deficient number, since it is larger than the sum of its proper divisors (9695843350).

11002121210 is a wasteful number, since it uses less digits than its factorization.

11002121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391250.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11002121210 its reverse (1212120011), we get a palindrome (12214241221).

The spelling of 11002121210 in words is "eleven billion, two million, one hundred twenty-one thousand, two hundred ten".