100121120011210 has 16 divisors (see below), whose sum is σ = 180218673837000. Its totient is φ = 40048301822976.

The previous prime is 100121120011207. The next prime is 100121120011261. The reversal of 100121120011210 is 12110021121001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25699597053529 + 74421522957681 = 5069477^2 + 8626791^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15374175 + ... + 20895154.

Almost surely, 2^{100121120011210} is an apocalyptic number.

100121120011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100121120011210 is a deficient number, since it is larger than the sum of its proper divisors (80097553825790).

100121120011210 is a wasteful number, since it uses less digits than its factorization.

100121120011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36545385.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100121120011210 its reverse (12110021121001), we get a palindrome (112231141132211).

The spelling of 100121120011210 in words is "one hundred trillion, one hundred twenty-one billion, one hundred twenty million, eleven thousand, two hundred ten".