100020022121002 has 4 divisors (see below), whose sum is σ = 150030033181506. Its totient is φ = 50010011060500.

The previous prime is 100020022120999. The next prime is 100020022121093. The reversal of 100020022121002 is 200121220020001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 70545535941321 + 29474486179681 = 8399139^2 + 5429041^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25005005530249 + ... + 25005005530252.

Almost surely, 2^{100020022121002} is an apocalyptic number.

100020022121002 is a deficient number, since it is larger than the sum of its proper divisors (50010011060504).

100020022121002 is an equidigital number, since it uses as much as digits as its factorization.

100020022121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50010011060503.

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

Adding to 100020022121002 its reverse (200121220020001), we get a palindrome (300141242141003).

It can be divided in two parts, 1000 and 20022121002, that added together give a palindrome (20022122002).

The spelling of 100020022121002 in words is "one hundred trillion, twenty billion, twenty-two million, one hundred twenty-one thousand, two".