220100100020212 has 6 divisors (see below), whose sum is σ = 385175175035378. Its totient is φ = 110050050010104.

The previous prime is 220100100020197. The next prime is 220100100020219. The reversal of 220100100020212 is 212020001001022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 117892124858596 + 102207975161616 = 10857814^2 + 10109796^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220100100020192 and 220100100020201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220100100020219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27512512502523 + ... + 27512512502530.

Almost surely, 2^{220100100020212} is an apocalyptic number.

It is an amenable number.

220100100020212 is a deficient number, since it is larger than the sum of its proper divisors (165075075015166).

220100100020212 is a wasteful number, since it uses less digits than its factorization.

220100100020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55025025005057 (or 55025025005055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220100100020212 its reverse (212020001001022), we get a palindrome (432120101021234).

The spelling of 220100100020212 in words is "two hundred twenty trillion, one hundred billion, one hundred million, twenty thousand, two hundred twelve".