1012121021230 has 64 divisors (see below), whose sum is σ = 2056645702080. Its totient is φ = 355236044800.

The previous prime is 1012121021159. The next prime is 1012121021257. The reversal of 1012121021230 is 321201212101.

It is a super-2 number, since 2×1012121021230² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 9956460 + ... + 10057600.

It is an arithmetic number, because the mean of its divisors is an integer number (32135089095).

Almost surely, 2^{1012121021230} is an apocalyptic number.

1012121021230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1012121021230 is an abundant number, since it is smaller than the sum of its proper divisors (1044524680850).

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

1012121021230 is a wasteful number, since it uses less digits than its factorization.

1012121021230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104325.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1012121021230 its reverse (321201212101), we get a palindrome (1333322233331).

The spelling of 1012121021230 in words is "one trillion, twelve billion, one hundred twenty-one million, twenty-one thousand, two hundred thirty".