1021210020022 has 4 divisors (see below), whose sum is σ = 1531815030036. Its totient is φ = 510605010010.

The previous prime is 1021210019993. The next prime is 1021210020031. The reversal of 1021210020022 is 2200200121201.

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 = 1021210019984 and 1021210020011.

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, 255302505004 + ... + 255302505007.

It is an arithmetic number, because the mean of its divisors is an integer number (382953757509).

Almost surely, 2^{1021210020022} is an apocalyptic number.

1021210020022 is a deficient number, since it is larger than the sum of its proper divisors (510605010014).

1021210020022 is an equidigital number, since it uses as much as digits as its factorization.

1021210020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510605010013.

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

Adding to 1021210020022 its reverse (2200200121201), we get a palindrome (3221410141223).

The spelling of 1021210020022 in words is "one trillion, twenty-one billion, two hundred ten million, twenty thousand, twenty-two".