2132211220 has 12 divisors (see below), whose sum is σ = 4477643604. Its totient is φ = 852884480.

The previous prime is 2132211209. The next prime is 2132211233. The reversal of 2132211220 is 221122312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 321198084 + 1811013136 = 17922^2 + 42556^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2132211194 and 2132211203.

It is a congruent number.

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, 53305261 + ... + 53305300.

It is an arithmetic number, because the mean of its divisors is an integer number (373136967).

Almost surely, 2^2132211220 is an apocalyptic number.

2132211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2132211220 is an abundant number, since it is smaller than the sum of its proper divisors (2345432384).

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

2132211220 is a wasteful number, since it uses less digits than its factorization.

2132211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106610570 (or 106610568 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2132211220 is about 46175.8727042597. The cubic root of 2132211220 is about 1287.0934339496.

Adding to 2132211220 its reverse (221122312), we get a palindrome (2353333532).

The spelling of 2132211220 in words is "two billion, one hundred thirty-two million, two hundred eleven thousand, two hundred twenty".