2221212202 has 16 divisors (see below), whose sum is σ = 3635704800. Its totient is φ = 1009365840.

The previous prime is 2221212179. The next prime is 2221212211. The reversal of 2221212202 is 2022121222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83824 + ... + 107092.

It is an arithmetic number, because the mean of its divisors is an integer number (227231550).

Almost surely, 2^2221212202 is an apocalyptic number.

2221212202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2221212202 is a deficient number, since it is larger than the sum of its proper divisors (1414492598).

2221212202 is a wasteful number, since it uses less digits than its factorization.

2221212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27621.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2221212202 is about 47129.7379793268. The cubic root of 2221212202 is about 1304.7581456549.

Adding to 2221212202 its reverse (2022121222), we get a palindrome (4243333424).

It can be divided in two parts, 222121220 and 2, that added together give a palindrome (222121222).

The spelling of 2221212202 in words is "two billion, two hundred twenty-one million, two hundred twelve thousand, two hundred two".