2131220202 has 16 divisors (see below), whose sum is σ = 4377641952. Its totient is φ = 691206480.

The previous prime is 2131220131. The next prime is 2131220213. The reversal of 2131220202 is 2020221312.

It is a happy number.

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, 4799824 + ... + 4800267.

It is an arithmetic number, because the mean of its divisors is an integer number (273602622).

Almost surely, 2^2131220202 is an apocalyptic number.

2131220202 is an abundant number, since it is smaller than the sum of its proper divisors (2246421750).

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

2131220202 is a wasteful number, since it uses less digits than its factorization.

2131220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9600133.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2131220202 is about 46165.1405499864. The cubic root of 2131220202 is about 1286.8939961679.

Adding to 2131220202 its reverse (2020221312), we get a palindrome (4151441514).

It can be divided in two parts, 21312 and 20202, that added together give a palindrome (41514).

The spelling of 2131220202 in words is "two billion, one hundred thirty-one million, two hundred twenty thousand, two hundred two".