1201212121022 has 8 divisors (see below), whose sum is σ = 1801822954176. Its totient is φ = 600604469632.

The previous prime is 1201212121003. The next prime is 1201212121037. The reversal of 1201212121022 is 2201212121021.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745118 + ... + 1719774.

It is an arithmetic number, because the mean of its divisors is an integer number (225227869272).

Almost surely, 2^{1201212121022} is an apocalyptic number.

1201212121022 is a deficient number, since it is larger than the sum of its proper divisors (600610833154).

1201212121022 is an equidigital number, since it uses as much as digits as its factorization.

1201212121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590882.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1201212121022 its reverse (2201212121021), we get a palindrome (3402424242043).

Subtracting 1201212121022 from its reverse (2201212121021), we obtain a palindrome (999999999999).

The spelling of 1201212121022 in words is "one trillion, two hundred one billion, two hundred twelve million, one hundred twenty-one thousand, twenty-two".