1021011121010 has 32 divisors (see below), whose sum is σ = 1918805196672. Its totient is φ = 390427741440.

The previous prime is 1021011120991. The next prime is 1021011121021. The reversal of 1021011121010 is 101211101201.

1021011121010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1021011120982 and 1021011121000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840356 + ... + 1657775.

It is an arithmetic number, because the mean of its divisors is an integer number (59962662396).

Almost surely, 2^{1021011121010} is an apocalyptic number.

1021011121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021011121010 is a deficient number, since it is larger than the sum of its proper divisors (897794075662).

1021011121010 is a wasteful number, since it uses less digits than its factorization.

1021011121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499938.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1021011121010 its reverse (101211101201), we get a palindrome (1122222222211).

The spelling of 1021011121010 in words is "one trillion, twenty-one billion, eleven million, one hundred twenty-one thousand, ten".