1212121122202 has 8 divisors (see below), whose sum is σ = 1818276285312. Its totient is φ = 606029027100.

The previous prime is 1212121122181. The next prime is 1212121122227. The reversal of 1212121122202 is 2022211212121.

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

It is a super-2 number, since 2×1212121122202² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1212121122202.

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, 15718924 + ... + 15795847.

It is an arithmetic number, because the mean of its divisors is an integer number (227284535664).

Almost surely, 2^{1212121122202} is an apocalyptic number.

1212121122202 is a deficient number, since it is larger than the sum of its proper divisors (606155163110).

1212121122202 is a wasteful number, since it uses less digits than its factorization.

1212121122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31534004.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1212121122202 its reverse (2022211212121), we get a palindrome (3234332334323).

The spelling of 1212121122202 in words is "one trillion, two hundred twelve billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred two".