1021202120022 has 16 divisors (see below), whose sum is σ = 2334176274432. Its totient is φ = 291772034280.

The previous prime is 1021202120011. The next prime is 1021202120023. The reversal of 1021202120022 is 2200212021201.

It is a junction number, because it is equal to n+sod(n) for n = 1021202119983 and 1021202120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021202120023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12157168054 + ... + 12157168137.

It is an arithmetic number, because the mean of its divisors is an integer number (145886017152).

Almost surely, 2^{1021202120022} is an apocalyptic number.

1021202120022 is an abundant number, since it is smaller than the sum of its proper divisors (1312974154410).

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

1021202120022 is a wasteful number, since it uses less digits than its factorization.

1021202120022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24314336203.

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

Adding to 1021202120022 its reverse (2200212021201), we get a palindrome (3221414141223).

The spelling of 1021202120022 in words is "one trillion, twenty-one billion, two hundred two million, one hundred twenty thousand, twenty-two".