212121011010002 has 32 divisors (see below), whose sum is σ = 323006194249200. Its totient is φ = 104463365932800.

The previous prime is 212121011009951. The next prime is 212121011010157. The reversal of 212121011010002 is 200010110121212.

It can be written as a sum of positive squares in 8 ways, for example, as 210062672744521 + 2058338265481 = 14493539^2 + 1434691^2 .

It is a super-3 number, since 3×212121011010002³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300051848 + ... + 300757964.

Almost surely, 2^{212121011010002} is an apocalyptic number.

212121011010002 is a deficient number, since it is larger than the sum of its proper divisors (110885183239198).

212121011010002 is a wasteful number, since it uses less digits than its factorization.

212121011010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713966.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212121011010002 its reverse (200010110121212), we get a palindrome (412131121131214).

The spelling of 212121011010002 in words is "two hundred twelve trillion, one hundred twenty-one billion, eleven million, ten thousand, two".