2221202142 has 64 divisors (see below), whose sum is σ = 5219665920. Its totient is φ = 699019200.

The previous prime is 2221202131. The next prime is 2221202143. The reversal of 2221202142 is 2412021222.

2221202142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221202143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52453 + ... + 84815.

It is an arithmetic number, because the mean of its divisors is an integer number (81557280).

Almost surely, 2^2221202142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221202142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2609832960).

2221202142 is an abundant number, since it is smaller than the sum of its proper divisors (2998463778).

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

2221202142 is a wasteful number, since it uses less digits than its factorization.

2221202142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32446 (or 32440 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2221202142 is about 47129.6312525358. The cubic root of 2221202142 is about 1304.7561758766.

Adding to 2221202142 its reverse (2412021222), we get a palindrome (4633223364).

The spelling of 2221202142 in words is "two billion, two hundred twenty-one million, two hundred two thousand, one hundred forty-two".