121021010001010 has 64 divisors (see below), whose sum is σ = 249954746158080. Its totient is φ = 41326957172160.

The previous prime is 121021010001007. The next prime is 121021010001043. The reversal of 121021010001010 is 10100010120121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21047337 + ... + 26173123.

It is an arithmetic number, because the mean of its divisors is an integer number (3905542908720).

Almost surely, 2^{121021010001010} is an apocalyptic number.

121021010001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121021010001010 is an abundant number, since it is smaller than the sum of its proper divisors (128933736157070).

121021010001010 is a wasteful number, since it uses less digits than its factorization.

121021010001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5127151.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121021010001010 its reverse (10100010120121), we get a palindrome (131121020121131).

The spelling of 121021010001010 in words is "one hundred twenty-one trillion, twenty-one billion, ten million, one thousand, ten".