11220021010 has 16 divisors (see below), whose sum is σ = 22032041472. Its totient is φ = 4080007600.

The previous prime is 11220020993. The next prime is 11220021013. The reversal of 11220021010 is 1012002211.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (11220021013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50999986 + ... + 51000205.

It is an arithmetic number, because the mean of its divisors is an integer number (1377002592).

Almost surely, 2^11220021010 is an apocalyptic number.

11220021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11220021010 is a deficient number, since it is larger than the sum of its proper divisors (10812020462).

11220021010 is a wasteful number, since it uses less digits than its factorization.

11220021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102000209.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11220021010 its reverse (1012002211), we get a palindrome (12232023221).

The spelling of 11220021010 in words is "eleven billion, two hundred twenty million, twenty-one thousand, ten".