2121211020010 has 8 divisors (see below), whose sum is σ = 3818179836036. Its totient is φ = 848484408000.

The previous prime is 2121211019989. The next prime is 2121211020013. The reversal of 2121211020010 is 100201121212.

It can be written as a sum of positive squares in 2 ways, for example, as 1706228975529 + 414982044481 = 1306227^2 + 644191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2121211020010³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2121211020013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106060550991 + ... + 106060551010.

Almost surely, 2^{2121211020010} is an apocalyptic number.

2121211020010 is a deficient number, since it is larger than the sum of its proper divisors (1696968816026).

2121211020010 is a wasteful number, since it uses less digits than its factorization.

2121211020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212121102008.

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

Adding to 2121211020010 its reverse (100201121212), we get a palindrome (2221412141222).

The spelling of 2121211020010 in words is "two trillion, one hundred twenty-one billion, two hundred eleven million, twenty thousand, ten".