220100121202 has 16 divisors (see below), whose sum is σ = 355572510552. Its totient is φ = 101577196800.

The previous prime is 220100121191. The next prime is 220100121209. The reversal of 220100121202 is 202121001022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 208647054841 + 11453066361 = 456779^2 + 107019^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (220100121209) 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 in 7 ways as a sum of consecutive naturals, for example, 56938 + ... + 665914.

Almost surely, 2^220100121202 is an apocalyptic number.

220100121202 is a deficient number, since it is larger than the sum of its proper divisors (135472389350).

220100121202 is a wasteful number, since it uses less digits than its factorization.

220100121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622893.

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

Adding to 220100121202 its reverse (202121001022), we get a palindrome (422221122224).

The spelling of 220100121202 in words is "two hundred twenty billion, one hundred million, one hundred twenty-one thousand, two hundred two".