20000001222010 has 16 divisors (see below), whose sum is σ = 36021993678216. Its totient is φ = 7995113493568.

The previous prime is 20000001221957. The next prime is 20000001222017. The reversal of 20000001222010 is 1022210000002.

It can be written as a sum of positive squares in 4 ways, for example, as 12195314168041 + 7804687053969 = 3492179^2 + 2793687^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (20000001222017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610857217 + ... + 610889956.

Almost surely, 2^{20000001222010} is an apocalyptic number.

20000001222010 is a deficient number, since it is larger than the sum of its proper divisors (16021992456206).

20000001222010 is a wasteful number, since it uses less digits than its factorization.

20000001222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221748817.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20000001222010 its reverse (1022210000002), we get a palindrome (21022211222012).

The spelling of 20000001222010 in words is "twenty trillion, one million, two hundred twenty-two thousand, ten".