1202222000028 has 48 divisors (see below), whose sum is σ = 3206292481280. Its totient is φ = 343452662784.

The previous prime is 1202222000027. The next prime is 1202222000099. The reversal of 1202222000028 is 8200002222021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1202221999968 and 1202222000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202222000027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77701 + ... + 1552572.

Almost surely, 2^{1202222000028} is an apocalyptic number.

It is an amenable number.

1202222000028 is an abundant number, since it is smaller than the sum of its proper divisors (2004070481252).

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

1202222000028 is a wasteful number, since it uses less digits than its factorization.

1202222000028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639066 (or 1639064 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 1202222000028 its reverse (8200002222021), we get a palindrome (9402224222049).

The spelling of 1202222000028 in words is "one trillion, two hundred two billion, two hundred twenty-two million, twenty-eight", and thus it is an aban number.