212110021002 has 32 divisors (see below), whose sum is σ = 477714069504. Its totient is φ = 62202351600.

The previous prime is 212110020979. The next prime is 212110021009. The reversal of 212110021002 is 200120011212.

It is a super-2 number, since 2×212110021002² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212110021009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51833248 + ... + 51837339.

It is an arithmetic number, because the mean of its divisors is an integer number (14928564672).

Almost surely, 2^212110021002 is an apocalyptic number.

212110021002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212110021002 is an abundant number, since it is smaller than the sum of its proper divisors (265604048502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212110021002 is a wasteful number, since it uses less digits than its factorization.

212110021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103670634.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 212110021002 its reverse (200120011212), we get a palindrome (412230032214).

The spelling of 212110021002 in words is "two hundred twelve billion, one hundred ten million, twenty-one thousand, two".