4220402131 has 4 divisors (see below), whose sum is σ = 4604075064. Its totient is φ = 3836729200.

The previous prime is 4220402129. The next prime is 4220402171. The reversal of 4220402131 is 1312040224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4220402131 - 2¹ = 4220402129 is a prime.

It is a super-2 number, since 2×4220402131² = 35623588294698682322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4220402099 and 4220402108.

It is not an unprimeable number, because it can be changed into a prime (4220402111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191836450 + ... + 191836471.

It is an arithmetic number, because the mean of its divisors is an integer number (1151018766).

Almost surely, 2^4220402131 is an apocalyptic number.

4220402131 is a deficient number, since it is larger than the sum of its proper divisors (383672933).

4220402131 is a wasteful number, since it uses less digits than its factorization.

4220402131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383672932.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4220402131 is about 64964.6221492898. The cubic root of 4220402131 is about 1616.0369178972.

Adding to 4220402131 its reverse (1312040224), we get a palindrome (5532442355).

It can be divided in two parts, 4220 and 402131, that added together give a triangular number (406351 = T₉₀₁).

The spelling of 4220402131 in words is "four billion, two hundred twenty million, four hundred two thousand, one hundred thirty-one".