1212210022 has 8 divisors (see below), whose sum is σ = 1825560072. Its totient is φ = 603690000.

The previous prime is 1212210001. The next prime is 1212210023. The reversal of 1212210022 is 2200122121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1212209984 and 1212210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212210023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1206879 + ... + 1207882.

It is an arithmetic number, because the mean of its divisors is an integer number (228195009).

Almost surely, 2^1212210022 is an apocalyptic number.

1212210022 is a deficient number, since it is larger than the sum of its proper divisors (613350050).

1212210022 is a wasteful number, since it uses less digits than its factorization.

1212210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415014.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1212210022 is about 34816.8066025591. The cubic root of 1212210022 is about 1066.2506037259.

Adding to 1212210022 its reverse (2200122121), we get a palindrome (3412332143).

The spelling of 1212210022 in words is "one billion, two hundred twelve million, two hundred ten thousand, twenty-two".