20002021021010 has 64 divisors (see below), whose sum is σ = 44096448287232. Its totient is φ = 6382380635136.

The previous prime is 20002021020983. The next prime is 20002021021109. The reversal of 20002021021010 is 1012012020002.

It is a happy number.

It is a super-2 number, since 2×20002021021010² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20002021020982 and 20002021021000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167827127 + ... + 167946266.

It is an arithmetic number, because the mean of its divisors is an integer number (689007004488).

Almost surely, 2^{20002021021010} is an apocalyptic number.

20002021021010 is an abundant number, since it is smaller than the sum of its proper divisors (24094427266222).

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

20002021021010 is a wasteful number, since it uses less digits than its factorization.

20002021021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335773467.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20002021021010 its reverse (1012012020002), we get a palindrome (21014033041012).

The spelling of 20002021021010 in words is "twenty trillion, two billion, twenty-one million, twenty-one thousand, ten".