212211210220210 has 16 divisors (see below), whose sum is σ = 382008333735936. Its totient is φ = 84878227345968.

The previous prime is 212211210220201. The next prime is 212211210220253. The reversal of 212211210220210 is 12022012112212.

It is a super-2 number, since 2×212211210220210² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781950312 + ... + 782221651.

It is an arithmetic number, because the mean of its divisors is an integer number (23875520858496).

Almost surely, 2^{212211210220210} is an apocalyptic number.

212211210220210 is a deficient number, since it is larger than the sum of its proper divisors (169797123515726).

212211210220210 is a wasteful number, since it uses less digits than its factorization.

212211210220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564185537.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212211210220210 its reverse (12022012112212), we get a palindrome (224233222332422).

The spelling of 212211210220210 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred ten million, two hundred twenty thousand, two hundred ten".