20102222121010 has 8 divisors (see below), whose sum is σ = 36183999817836. Its totient is φ = 8040888848400.

The previous prime is 20102222120987. The next prime is 20102222121013. The reversal of 20102222121010 is 1012122220102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20070606080529 + 31616040481 = 4480023^2 + 177809^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20102222121013) 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, 1005111106041 + ... + 1005111106060.

Almost surely, 2^{20102222121010} is an apocalyptic number.

20102222121010 is a deficient number, since it is larger than the sum of its proper divisors (16081777696826).

20102222121010 is a wasteful number, since it uses less digits than its factorization.

20102222121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010222212108.

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

Adding to 20102222121010 its reverse (1012122220102), we get a palindrome (21114344341112).

The spelling of 20102222121010 in words is "twenty trillion, one hundred two billion, two hundred twenty-two million, one hundred twenty-one thousand, ten".