3820220202020 has 12 divisors (see below), whose sum is σ = 8022462424284. Its totient is φ = 1528088080800.

The previous prime is 3820220202017. The next prime is 3820220202053. The reversal of 3820220202020 is 202020220283.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1405571482624 + 2414648719396 = 1185568^2 + 1553914^2 .

It is a super-2 number, since 2×3820220202020² (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95505505031 + ... + 95505505070.

It is an arithmetic number, because the mean of its divisors is an integer number (668538535357).

Almost surely, 2^{3820220202020} is an apocalyptic number.

It is an amenable number.

3820220202020 is an abundant number, since it is smaller than the sum of its proper divisors (4202242222264).

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

3820220202020 is a wasteful number, since it uses less digits than its factorization.

3820220202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191011010110 (or 191011010108 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The spelling of 3820220202020 in words is "three trillion, eight hundred twenty billion, two hundred twenty million, two hundred two thousand, twenty".