1020021201022 has 4 divisors (see below), whose sum is σ = 1530031801536. Its totient is φ = 510010600510.

The previous prime is 1020021200981. The next prime is 1020021201037. The reversal of 1020021201022 is 2201021200201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1020021200993 and 1020021201011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255005300254 + ... + 255005300257.

It is an arithmetic number, because the mean of its divisors is an integer number (382507950384).

Almost surely, 2^{1020021201022} is an apocalyptic number.

1020021201022 is a deficient number, since it is larger than the sum of its proper divisors (510010600514).

1020021201022 is an equidigital number, since it uses as much as digits as its factorization.

1020021201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510010600513.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1020021201022 its reverse (2201021200201), we get a palindrome (3221042401223).

The spelling of 1020021201022 in words is "one trillion, twenty billion, twenty-one million, two hundred one thousand, twenty-two".