1010000210121 has 12 divisors (see below), whose sum is σ = 1667301934272. Its totient is φ = 577142977176.

The previous prime is 1010000210113. The next prime is 1010000210159. The reversal of 1010000210121 is 1210120000101.

It is a happy number.

It is not a de Polignac number, because 1010000210121 - 2³ = 1010000210113 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1010000210221) 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, 8015874621 + ... + 8015874746.

It is an arithmetic number, because the mean of its divisors is an integer number (138941827856).

Almost surely, 2^{1010000210121} is an apocalyptic number.

It is an amenable number.

1010000210121 is a deficient number, since it is larger than the sum of its proper divisors (657301724151).

1010000210121 is a wasteful number, since it uses less digits than its factorization.

1010000210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16031749380 (or 16031749377 counting only the distinct ones).

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

Adding to 1010000210121 its reverse (1210120000101), we get a palindrome (2220120210222).

The spelling of 1010000210121 in words is "one trillion, ten billion, two hundred ten thousand, one hundred twenty-one".