1020001200222 has 64 divisors (see below), whose sum is σ = 2134205199360. Its totient is φ = 324699508224.

The previous prime is 1020001200193. The next prime is 1020001200223. The reversal of 1020001200222 is 2220021000201.

It is a junction number, because it is equal to n+sod(n) for n = 1020001200198 and 1020001200207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020001200223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2386479 + ... + 2781237.

It is an arithmetic number, because the mean of its divisors is an integer number (33346956240).

Almost surely, 2^{1020001200222} is an apocalyptic number.

1020001200222 is an abundant number, since it is smaller than the sum of its proper divisors (1114203999138).

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

1020001200222 is a wasteful number, since it uses less digits than its factorization.

1020001200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395017.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1020001200222 its reverse (2220021000201), we get a palindrome (3240022200423).

The spelling of 1020001200222 in words is "one trillion, twenty billion, one million, two hundred thousand, two hundred twenty-two".