221201020020002 has 16 divisors (see below), whose sum is σ = 361966251217824. Its totient is φ = 100545655488000.

The previous prime is 221201020019957. The next prime is 221201020020047. The reversal of 221201020020002 is 200020020102122.

It is an interprime number because it is at equal distance from previous prime (221201020019957) and next prime (221201020020047).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4394324 + ... + 21487487.

It is an arithmetic number, because the mean of its divisors is an integer number (22622890701114).

Almost surely, 2^{221201020020002} is an apocalyptic number.

221201020020002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221201020020002 is a deficient number, since it is larger than the sum of its proper divisors (140765231197822).

221201020020002 is a wasteful number, since it uses less digits than its factorization.

221201020020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26270305.

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

Adding to 221201020020002 its reverse (200020020102122), we get a palindrome (421221040122124).

The spelling of 221201020020002 in words is "two hundred twenty-one trillion, two hundred one billion, twenty million, twenty thousand, two".