121021121020010 has 16 divisors (see below), whose sum is σ = 217838275053696. Its totient is φ = 48408391248528.

The previous prime is 121021121020001. The next prime is 121021121020043. The reversal of 121021121020010 is 10020121120121.

It is a super-2 number, since 2×121021121020010² (a number of 29 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 2348147 + ... + 15733913.

It is an arithmetic number, because the mean of its divisors is an integer number (13614892190856).

Almost surely, 2^{121021121020010} is an apocalyptic number.

121021121020010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121021121020010 is a deficient number, since it is larger than the sum of its proper divisors (96817154033686).

121021121020010 is a wasteful number, since it uses less digits than its factorization.

121021121020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14289877.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121021121020010 its reverse (10020121120121), we get a palindrome (131041242140131).

The spelling of 121021121020010 in words is "one hundred twenty-one trillion, twenty-one billion, one hundred twenty-one million, twenty thousand, ten".