1212210100022 has 4 divisors (see below), whose sum is σ = 1818315150036. Its totient is φ = 606105050010.

The previous prime is 1212210100021. The next prime is 1212210100097. The reversal of 1212210100022 is 2200010122121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212210100021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303052525004 + ... + 303052525007.

It is an arithmetic number, because the mean of its divisors is an integer number (454578787509).

Almost surely, 2^{1212210100022} is an apocalyptic number.

1212210100022 is a deficient number, since it is larger than the sum of its proper divisors (606105050014).

1212210100022 is an equidigital number, since it uses as much as digits as its factorization.

1212210100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606105050013.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1212210100022 its reverse (2200010122121), we get a palindrome (3412220222143).

The spelling of 1212210100022 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred thousand, twenty-two".