1210222220212 has 24 divisors (see below), whose sum is σ = 2119996311552. Its totient is φ = 604509204000.

The previous prime is 1210222220203. The next prime is 1210222220261. The reversal of 1210222220212 is 2120222220121.

It is a self number, because there is not a number n which added to its sum of digits gives 1210222220212.

It is a congruent number.

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, 25324813 + ... + 25372555.

It is an arithmetic number, because the mean of its divisors is an integer number (88333179648).

Almost surely, 2^{1210222220212} is an apocalyptic number.

It is an amenable number.

1210222220212 is a deficient number, since it is larger than the sum of its proper divisors (909774091340).

1210222220212 is a wasteful number, since it uses less digits than its factorization.

1210222220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53919 (or 53917 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1210222220212 its reverse (2120222220121), we get a palindrome (3330444440333).

Subtracting 1210222220212 from its reverse (2120222220121), we obtain a palindrome (909999999909).

The spelling of 1210222220212 in words is "one trillion, two hundred ten billion, two hundred twenty-two million, two hundred twenty thousand, two hundred twelve".