20212021002010 has 16 divisors (see below), whose sum is σ = 36411630931656. Its totient is φ = 8078143261248.

The previous prime is 20212021001987. The next prime is 20212021002031. The reversal of 20212021002010 is 1020012021202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16441670657889 + 3770350344121 = 4054833^2 + 1941739^2 .

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, 833129709 + ... + 833153968.

Almost surely, 2^{20212021002010} is an apocalyptic number.

20212021002010 is a deficient number, since it is larger than the sum of its proper divisors (16199609929646).

20212021002010 is a wasteful number, since it uses less digits than its factorization.

20212021002010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666284897.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20212021002010 its reverse (1020012021202), we get a palindrome (21232033023212).

The spelling of 20212021002010 in words is "twenty trillion, two hundred twelve billion, twenty-one million, two thousand, ten".