100121000002011 has 12 divisors (see below), whose sum is σ = 147070395483960. Its totient is φ = 65616022599840.

The previous prime is 100121000001989. The next prime is 100121000002021. The reversal of 100121000002011 is 110200000121001.

It is a happy number.

It is not a de Polignac number, because 100121000002011 - 2¹⁸ = 100120999739867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 100121000001984 and 100121000002002.

It is not an unprimeable number, because it can be changed into a prime (100121000002021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94275894010 + ... + 94275895071.

It is an arithmetic number, because the mean of its divisors is an integer number (12255866290330).

Almost surely, 2^{100121000002011} is an apocalyptic number.

100121000002011 is a deficient number, since it is larger than the sum of its proper divisors (46949395481949).

100121000002011 is a wasteful number, since it uses less digits than its factorization.

100121000002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188551789146 (or 188551789143 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 100121000002011 its reverse (110200000121001), we get a palindrome (210321000123012).

The spelling of 100121000002011 in words is "one hundred trillion, one hundred twenty-one billion, two thousand, eleven".