11222122121210 has 128 divisors (see below), whose sum is σ = 27138227558400. Its totient is φ = 3226743486720.

The previous prime is 11222122121149. The next prime is 11222122121219. The reversal of 11222122121210 is 1212122122211.

It is not an unprimeable number, because it can be changed into a prime (11222122121219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15859961 + ... + 16552419.

It is an arithmetic number, because the mean of its divisors is an integer number (212017402800).

Almost surely, 2^{11222122121210} is an apocalyptic number.

11222122121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11222122121210 is an abundant number, since it is smaller than the sum of its proper divisors (15916105437190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11222122121210 is a wasteful number, since it uses less digits than its factorization.

11222122121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694116.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11222122121210 its reverse (1212122122211), we get a palindrome (12434244243421).

The spelling of 11222122121210 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred ten".