2202212121000 has 256 divisors, whose sum is σ = 7115157504000. Its totient is φ = 566421811200.

The previous prime is 2202212120959. The next prime is 2202212121013. The reversal of 2202212121000 is 1212122022.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 87770457 + ... + 87795543.

It is an arithmetic number, because the mean of its divisors is an integer number (27793584000).

Almost surely, 2^{2202212121000} is an apocalyptic number.

2202212121000 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 2202212121000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3557578752000).

2202212121000 is an abundant number, since it is smaller than the sum of its proper divisors (4912945383000).

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

2202212121000 is a wasteful number, since it uses less digits than its factorization.

2202212121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26149 (or 26135 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2202212121000 its reverse (1212122022), we get a palindrome (2203424243022).

The spelling of 2202212121000 in words is "two trillion, two hundred two billion, two hundred twelve million, one hundred twenty-one thousand".