10011022121020 has 48 divisors (see below), whose sum is σ = 21470924926080. Its totient is φ = 3919121501184.

The previous prime is 10011022120997. The next prime is 10011022121029. The reversal of 10011022121020 is 2012122011001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011022121029) 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, 56628526 + ... + 56805034.

It is an arithmetic number, because the mean of its divisors is an integer number (447310935960).

Almost surely, 2^{10011022121020} is an apocalyptic number.

10011022121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10011022121020 is an abundant number, since it is smaller than the sum of its proper divisors (11459902805060).

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

10011022121020 is a wasteful number, since it uses less digits than its factorization.

10011022121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236902 (or 236900 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10011022121020 its reverse (2012122011001), we get a palindrome (12023144132021).

The spelling of 10011022121020 in words is "ten trillion, eleven billion, twenty-two million, one hundred twenty-one thousand, twenty".