2122312121000 has 32 divisors (see below), whose sum is σ = 4966210365480. Its totient is φ = 848924848000.

The previous prime is 2122312120909. The next prime is 2122312121003. The reversal of 2122312121000 is 1212132212.

It can be written as a sum of positive squares in 4 ways, for example, as 299968717636 + 1822343403364 = 547694^2 + 1349942^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2122312121000.

It is not an unprimeable number, because it can be changed into a prime (2122312121003) 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, 1061155061 + ... + 1061157060.

Almost surely, 2^{2122312121000} is an apocalyptic number.

2122312121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122312121000 is an abundant number, since it is smaller than the sum of its proper divisors (2843898244480).

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

2122312121000 is a wasteful number, since it uses less digits than its factorization.

2122312121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122312142 (or 2122312128 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2122312121000 its reverse (1212132212), we get a palindrome (2123524253212).

It can be divided in two parts, 212231212 and 1000, that added together give a palindrome (212232212).

The spelling of 2122312121000 in words is "two trillion, one hundred twenty-two billion, three hundred twelve million, one hundred twenty-one thousand".