122221020002 has 4 divisors (see below), whose sum is σ = 183331530006. Its totient is φ = 61110510000.

The previous prime is 122221019953. The next prime is 122221020017. The reversal of 122221020002 is 200020122221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200020122221 = 151 ⋅1324636571.

It can be written as a sum of positive squares in only one way, i.e., 122220859201 + 160801 = 349601^2 + 401^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30555254999 + ... + 30555255002.

Almost surely, 2^122221020002 is an apocalyptic number.

122221020002 is a deficient number, since it is larger than the sum of its proper divisors (61110510004).

122221020002 is an equidigital number, since it uses as much as digits as its factorization.

122221020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61110510003.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 122221020002 its reverse (200020122221), we get a palindrome (322241142223).

The spelling of 122221020002 in words is "one hundred twenty-two billion, two hundred twenty-one million, twenty thousand, two".