2003021222412 has 48 divisors (see below), whose sum is σ = 5361246455040. Its totient is φ = 570164292672.

The previous prime is 2003021222357. The next prime is 2003021222417. The reversal of 2003021222412 is 2142221203002.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2003021222417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44299878 + ... + 44345069.

It is an arithmetic number, because the mean of its divisors is an integer number (111692634480).

Almost surely, 2^{2003021222412} is an apocalyptic number.

It is an amenable number.

2003021222412 is an abundant number, since it is smaller than the sum of its proper divisors (3358225232628).

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

2003021222412 is a wasteful number, since it uses less digits than its factorization.

2003021222412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88645230 (or 88645228 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 2003021222412 its reverse (2142221203002), we get a palindrome (4145242425414).

The spelling of 2003021222412 in words is "two trillion, three billion, twenty-one million, two hundred twenty-two thousand, four hundred twelve".