11221001001210 has 256 divisors, whose sum is σ = 37135557623808. Its totient is φ = 2094109977600.

The previous prime is 11221001001169. The next prime is 11221001001241. The reversal of 11221001001210 is 1210010012211.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3938346 + ... + 6160565.

It is an arithmetic number, because the mean of its divisors is an integer number (145060771968).

Almost surely, 2^{11221001001210} is an apocalyptic number.

11221001001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11221001001210 is an abundant number, since it is smaller than the sum of its proper divisors (25914556622598).

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

11221001001210 is a wasteful number, since it uses less digits than its factorization.

11221001001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10098989.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11221001001210 its reverse (1210010012211), we get a palindrome (12431011013421).

The spelling of 11221001001210 in words is "eleven trillion, two hundred twenty-one billion, one million, one thousand, two hundred ten".