2102220212 has 6 divisors (see below), whose sum is σ = 3678885378. Its totient is φ = 1051110104.

The previous prime is 2102220203. The next prime is 2102220227. The reversal of 2102220212 is 2120222012.

It can be written as a sum of positive squares in only one way, i.e., 1855541776 + 246678436 = 43076^2 + 15706^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262777523 + ... + 262777530.

It is an arithmetic number, because the mean of its divisors is an integer number (613147563).

Almost surely, 2^2102220212 is an apocalyptic number.

It is an amenable number.

2102220212 is a deficient number, since it is larger than the sum of its proper divisors (1576665166).

2102220212 is a wasteful number, since it uses less digits than its factorization.

2102220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525555057 (or 525555055 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2102220212 is about 45849.9750490663. The cubic root of 2102220212 is about 1281.0303008362.

Adding to 2102220212 its reverse (2120222012), we get a palindrome (4222442224).

The spelling of 2102220212 in words is "two billion, one hundred two million, two hundred twenty thousand, two hundred twelve".