1021220221062 has 16 divisors (see below), whose sum is σ = 2042451639360. Its totient is φ = 340404874152.

The previous prime is 1021220221061. The next prime is 1021220221103. The reversal of 1021220221062 is 2601220221201.

It is a super-3 number, since 3×1021220221062³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021220221061) 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, 1149889 + ... + 1834307.

It is an arithmetic number, because the mean of its divisors is an integer number (127653227460).

Almost surely, 2^{1021220221062} is an apocalyptic number.

1021220221062 is an abundant number, since it is smaller than the sum of its proper divisors (1021231418298).

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

1021220221062 is a wasteful number, since it uses less digits than its factorization.

1021220221062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933107.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1021220221062 its reverse (2601220221201), we get a palindrome (3622440442263).

The spelling of 1021220221062 in words is "one trillion, twenty-one billion, two hundred twenty million, two hundred twenty-one thousand, sixty-two".