10221002120212 has 24 divisors (see below), whose sum is σ = 20395755363816. Its totient is φ = 4439892323328.

The previous prime is 10221002120201. The next prime is 10221002120221. The reversal of 10221002120212 is 21202120012201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4363227479556 + 5857774640656 = 2088834^2 + 2420284^2 .

It is a super-3 number, since 3×10221002120212³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5781108913 + ... + 5781110680.

It is an arithmetic number, because the mean of its divisors is an integer number (849823140159).

Almost surely, 2^{10221002120212} is an apocalyptic number.

It is an amenable number.

10221002120212 is a deficient number, since it is larger than the sum of its proper divisors (10174753243604).

10221002120212 is a wasteful number, since it uses less digits than its factorization.

10221002120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11562219627 (or 11562219625 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10221002120212 its reverse (21202120012201), we get a palindrome (31423122132413).

The spelling of 10221002120212 in words is "ten trillion, two hundred twenty-one billion, two million, one hundred twenty thousand, two hundred twelve".