1212022211022 has 48 divisors (see below), whose sum is σ = 3074397816672. Its totient is φ = 337845911040.

The previous prime is 1212022210991. The next prime is 1212022211041. The reversal of 1212022211022 is 2201122202121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1212022210986 and 1212022211004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117302443 + ... + 117312774.

It is an arithmetic number, because the mean of its divisors is an integer number (64049954514).

Almost surely, 2^{1212022211022} is an apocalyptic number.

1212022211022 is an abundant number, since it is smaller than the sum of its proper divisors (1862375605650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212022211022 is a wasteful number, since it uses less digits than its factorization.

1212022211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234615273 (or 234615270 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1212022211022 its reverse (2201122202121), we get a palindrome (3413144413143).

The spelling of 1212022211022 in words is "one trillion, two hundred twelve billion, twenty-two million, two hundred eleven thousand, twenty-two".