11211220010 has 32 divisors (see below), whose sum is σ = 21377131200. Its totient is φ = 4218746112.

The previous prime is 11211220003. The next prime is 11211220049. The reversal of 11211220010 is 1002211211.

It is a super-2 number, since 2×11211220010² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11211219973 and 11211220000.

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, 384941 + ... + 413039.

It is an arithmetic number, because the mean of its divisors is an integer number (668035350).

Almost surely, 2^11211220010 is an apocalyptic number.

11211220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11211220010 is a deficient number, since it is larger than the sum of its proper divisors (10165911190).

11211220010 is a wasteful number, since it uses less digits than its factorization.

11211220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30470.

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

Adding to 11211220010 its reverse (1002211211), we get a palindrome (12213431221).

The spelling of 11211220010 in words is "eleven billion, two hundred eleven million, two hundred twenty thousand, ten".