10100121010 has 32 divisors (see below), whose sum is σ = 20803128192. Its totient is φ = 3458609280.

The previous prime is 10100120923. The next prime is 10100121011. The reversal of 10100121010 is 1012100101.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a junction number, because it is equal to n+sod(n) for n = 10100120984 and 10100121002.

It is not an unprimeable number, because it can be changed into a prime (10100121011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32187 + ... + 145726.

It is an arithmetic number, because the mean of its divisors is an integer number (650097756).

Almost surely, 2^10100121010 is an apocalyptic number.

10100121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10100121010 is an abundant number, since it is smaller than the sum of its proper divisors (10703007182).

10100121010 is a wasteful number, since it uses less digits than its factorization.

10100121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178738.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 10100121010 its reverse (1012100101), we get a palindrome (11112221111).

The spelling of 10100121010 in words is "ten billion, one hundred million, one hundred twenty-one thousand, ten".