2121002222000 has 160 divisors (see below), whose sum is σ = 5186163153600. Its totient is φ = 838897920000.

The previous prime is 2121002221957. The next prime is 2121002222029. The reversal of 2121002222000 is 2222001212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163411511 + ... + 163424489.

It is an arithmetic number, because the mean of its divisors is an integer number (32413519710).

Almost surely, 2^{2121002222000} is an apocalyptic number.

2121002222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2121002222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2593081576800).

2121002222000 is an abundant number, since it is smaller than the sum of its proper divisors (3065160931600).

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

2121002222000 is a wasteful number, since it uses less digits than its factorization.

2121002222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13912 (or 13896 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2121002222000 its reverse (2222001212), we get a palindrome (2123224223212).

The spelling of 2121002222000 in words is "two trillion, one hundred twenty-one billion, two million, two hundred twenty-two thousand".