1021201220022 has 8 divisors (see below), whose sum is σ = 2042402440056. Its totient is φ = 340400406672.

The previous prime is 1021201220021. The next prime is 1021201220023. The reversal of 1021201220022 is 2200221021201.

It is an interprime number because it is at equal distance from previous prime (1021201220021) and next prime (1021201220023).

It is a sphenic number, since it is the product of 3 distinct primes.

1021201220022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1021201219983 and 1021201220010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021201220021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85100101663 + ... + 85100101674.

It is an arithmetic number, because the mean of its divisors is an integer number (255300305007).

Almost surely, 2^{1021201220022} is an apocalyptic number.

1021201220022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1021201220022 is a wasteful number, since it uses less digits than its factorization.

1021201220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170200203342.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1021201220022 its reverse (2200221021201), we get a palindrome (3221422241223).

It can be divided in two parts, 1021201 and 220022, that multiplied together give a palindrome (224686686422).

The spelling of 1021201220022 in words is "one trillion, twenty-one billion, two hundred one million, two hundred twenty thousand, twenty-two".