121120001220010 has 32 divisors (see below), whose sum is σ = 234788712354000. Its totient is φ = 44720802943488.

The previous prime is 121120001220007. The next prime is 121120001220067. The reversal of 121120001220010 is 10022100021121.

It can be written as a sum of positive squares in 8 ways, for example, as 84671963817169 + 36448037402841 = 9201737^2 + 6037221^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 9329116 + ... + 18145864.

Almost surely, 2^{121120001220010} is an apocalyptic number.

121120001220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121120001220010 is a deficient number, since it is larger than the sum of its proper divisors (113668711133990).

121120001220010 is a wasteful number, since it uses less digits than its factorization.

121120001220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8922442.

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

Adding to 121120001220010 its reverse (10022100021121), we get a palindrome (131142101241131).

The spelling of 121120001220010 in words is "one hundred twenty-one trillion, one hundred twenty billion, one million, two hundred twenty thousand, ten".