22203003121002 has 144 divisors (see below), whose sum is σ = 54884556592320. Its totient is φ = 6722203245120.

The previous prime is 22203003120983. The next prime is 22203003121043. The reversal of 22203003121002 is 20012130030222.

22203003121002 is a `hidden beast` number, since 2 + 220 + 30 + 0 + 312 + 100 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 66224763 + ... + 66559185.

Almost surely, 2^{22203003121002} is an apocalyptic number.

22203003121002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22203003121002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27442278296160).

22203003121002 is an abundant number, since it is smaller than the sum of its proper divisors (32681553471318).

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

22203003121002 is a wasteful number, since it uses less digits than its factorization.

22203003121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335591 (or 335568 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22203003121002 its reverse (20012130030222), we get a palindrome (42215133151224).

The spelling of 22203003121002 in words is "twenty-two trillion, two hundred three billion, three million, one hundred twenty-one thousand, two".