1202222021022 has 72 divisors (see below), whose sum is σ = 2871120273840. Its totient is φ = 363294676800.

The previous prime is 1202222021017. The next prime is 1202222021081. The reversal of 1202222021022 is 2201202222021.

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 = 1202222020986 and 1202222021004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13122 + ... + 1550682.

It is an arithmetic number, because the mean of its divisors is an integer number (39876670470).

Almost surely, 2^{1202222021022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1202222021022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1435560136920).

1202222021022 is an abundant number, since it is smaller than the sum of its proper divisors (1668898252818).

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

1202222021022 is a wasteful number, since it uses less digits than its factorization.

1202222021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537950 (or 1537936 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1202222021022 its reverse (2201202222021), we get a palindrome (3403424243043).

The spelling of 1202222021022 in words is "one trillion, two hundred two billion, two hundred twenty-two million, twenty-one thousand, twenty-two".