220021101002 has 16 divisors (see below), whose sum is σ = 350688870792. Its totient is φ = 103170869760.

The previous prime is 220021100983. The next prime is 220021101007. The reversal of 220021101002 is 200101120022.

It is a happy number.

220021101002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 164575451041 + 55445649961 = 405679^2 + 235469^2 .

It is a super-2 number, since 2×220021101002² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220021101007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11505053 + ... + 11524160.

Almost surely, 2^220021101002 is an apocalyptic number.

220021101002 is a deficient number, since it is larger than the sum of its proper divisors (130667769790).

220021101002 is a wasteful number, since it uses less digits than its factorization.

220021101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23029513.

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

Adding to 220021101002 its reverse (200101120022), we get a palindrome (420122221024).

The spelling of 220021101002 in words is "two hundred twenty billion, twenty-one million, one hundred one thousand, two".