10212100121002 has 16 divisors (see below), whose sum is σ = 16496543641032. Its totient is φ = 4713255774720.

The previous prime is 10212100120993. The next prime is 10212100121071. The reversal of 10212100121002 is 20012100121201.

It can be written as a sum of positive squares in 4 ways, for example, as 1612491085921 + 8599609035081 = 1269839^2 + 2932509^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6026658 + ... + 7532914.

Almost surely, 2^{10212100121002} is an apocalyptic number.

10212100121002 is a deficient number, since it is larger than the sum of its proper divisors (6284443520030).

10212100121002 is a wasteful number, since it uses less digits than its factorization.

10212100121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767033.

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

Adding to 10212100121002 its reverse (20012100121201), we get a palindrome (30224200242203).

The spelling of 10212100121002 in words is "ten trillion, two hundred twelve billion, one hundred million, one hundred twenty-one thousand, two".