1212021100022 has 8 divisors (see below), whose sum is σ = 1818106857216. Its totient is φ = 605985480952.

The previous prime is 1212021100007. The next prime is 1212021100027. The reversal of 1212021100022 is 2200011202121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212021100027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12474038 + ... + 12570825.

It is an arithmetic number, because the mean of its divisors is an integer number (227263357152).

Almost surely, 2^{1212021100022} is an apocalyptic number.

1212021100022 is a deficient number, since it is larger than the sum of its proper divisors (606085757194).

1212021100022 is a wasteful number, since it uses less digits than its factorization.

1212021100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25069062.

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

Adding to 1212021100022 its reverse (2200011202121), we get a palindrome (3412032302143).

The spelling of 1212021100022 in words is "one trillion, two hundred twelve billion, twenty-one million, one hundred thousand, twenty-two".