1210120221222 has 24 divisors (see below), whose sum is σ = 2860284159720. Its totient is φ = 366703097280.

The previous prime is 1210120221179. The next prime is 1210120221241. The reversal of 1210120221222 is 2221220210121.

It is a happy number.

1210120221222 is a `hidden beast` number, since 1 + 210 + 12 + 0 + 221 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1210120221195 and 1210120221204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3055858947 + ... + 3055859342.

It is an arithmetic number, because the mean of its divisors is an integer number (119178506655).

Almost surely, 2^{1210120221222} is an apocalyptic number.

1210120221222 is an abundant number, since it is smaller than the sum of its proper divisors (1650163938498).

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

1210120221222 is a wasteful number, since it uses less digits than its factorization.

1210120221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111718308 (or 6111718305 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1210120221222 its reverse (2221220210121), we get a palindrome (3431340431343).

The spelling of 1210120221222 in words is "one trillion, two hundred ten billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty-two".