3211212020 has 48 divisors (see below), whose sum is σ = 7000051968. Its totient is φ = 1236524160.

The previous prime is 3211212013. The next prime is 3211212023. The reversal of 3211212020 is 202121123.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3211211986 and 3211212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3211212023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29339 + ... + 85341.

It is an arithmetic number, because the mean of its divisors is an integer number (145834416).

Almost surely, 2^3211212020 is an apocalyptic number.

It is an amenable number.

3211212020 is an abundant number, since it is smaller than the sum of its proper divisors (3788839948).

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

3211212020 is a wasteful number, since it uses less digits than its factorization.

3211212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56120 (or 56118 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 3211212020 is about 56667.5570322208. The cubic root of 3211212020 is about 1475.3316530868.

Adding to 3211212020 its reverse (202121123), we get a palindrome (3413333143).

The spelling of 3211212020 in words is "three billion, two hundred eleven million, two hundred twelve thousand, twenty".