20202121001010 has 64 divisors (see below), whose sum is σ = 52731690197760. Its totient is φ = 4923593836800.

The previous prime is 20202121000969. The next prime is 20202121001017. The reversal of 20202121001010 is 1010012120202.

It is not an unprimeable number, because it can be changed into a prime (20202121001017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256397790 + ... + 256476569.

It is an arithmetic number, because the mean of its divisors is an integer number (823932659340).

Almost surely, 2^{20202121001010} is an apocalyptic number.

20202121001010 is an abundant number, since it is smaller than the sum of its proper divisors (32529569196750).

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

20202121001010 is a wasteful number, since it uses less digits than its factorization.

20202121001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512874483.

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

Adding to 20202121001010 its reverse (1010012120202), we get a palindrome (21212133121212).

The spelling of 20202121001010 in words is "twenty trillion, two hundred two billion, one hundred twenty-one million, one thousand, ten".