2212011121000 has 32 divisors (see below), whose sum is σ = 5176106025480. Its totient is φ = 884804448000.

The previous prime is 2212011120997. The next prime is 2212011121007. The reversal of 2212011121000 is 1211102122.

It can be written as a sum of positive squares in 4 ways, for example, as 118045842084 + 2093965278916 = 343578^2 + 1447054^2 .

It is not an unprimeable number, because it can be changed into a prime (2212011121007) 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, 1106004561 + ... + 1106006560.

Almost surely, 2^{2212011121000} is an apocalyptic number.

2212011121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212011121000 is an abundant number, since it is smaller than the sum of its proper divisors (2964094904480).

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

2212011121000 is a wasteful number, since it uses less digits than its factorization.

2212011121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212011142 (or 2212011128 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2212011121000 its reverse (1211102122), we get a palindrome (2213222223122).

The spelling of 2212011121000 in words is "two trillion, two hundred twelve billion, eleven million, one hundred twenty-one thousand".