1011022021032 has 64 divisors (see below), whose sum is σ = 2587785816000. Its totient is φ = 328985362944.

The previous prime is 1011022020991. The next prime is 1011022021033. The reversal of 1011022021032 is 2301202201101.

It is not an unprimeable number, because it can be changed into a prime (1011022021033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1572444 + ... + 2120052.

It is an arithmetic number, because the mean of its divisors is an integer number (40434153375).

Almost surely, 2^{1011022021032} is an apocalyptic number.

1011022021032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011022021032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1293892908000).

1011022021032 is an abundant number, since it is smaller than the sum of its proper divisors (1576763794968).

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

1011022021032 is a wasteful number, since it uses less digits than its factorization.

1011022021032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549450 (or 549446 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1011022021032 its reverse (2301202201101), we get a palindrome (3312224222133).

The spelling of 1011022021032 in words is "one trillion, eleven billion, twenty-two million, twenty-one thousand, thirty-two".