2123011221000 has 128 divisors (see below), whose sum is σ = 7013430178560. Its totient is φ = 532834176000.

The previous prime is 2123011220963. The next prime is 2123011221041. The reversal of 2123011221000 is 1221103212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20762836 + ... + 20864835.

It is an arithmetic number, because the mean of its divisors is an integer number (54792423270).

Almost surely, 2^{2123011221000} is an apocalyptic number.

2123011221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123011221000 is an abundant number, since it is smaller than the sum of its proper divisors (4890418957560).

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

2123011221000 is a wasteful number, since it uses less digits than its factorization.

2123011221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41627712 (or 41627698 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2123011221000 its reverse (1221103212), we get a palindrome (2124232324212).

The spelling of 2123011221000 in words is "two trillion, one hundred twenty-three billion, eleven million, two hundred twenty-one thousand".