221121020101002 has 16 divisors (see below), whose sum is σ = 505419474516672. Its totient is φ = 63177434314560.

The previous prime is 221121020100989. The next prime is 221121020101019. The reversal of 221121020101002 is 200101020121122.

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, 2632393096399 + ... + 2632393096482.

It is an arithmetic number, because the mean of its divisors is an integer number (31588717157292).

Almost surely, 2^{221121020101002} is an apocalyptic number.

221121020101002 is an abundant number, since it is smaller than the sum of its proper divisors (284298454415670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221121020101002 is a wasteful number, since it uses less digits than its factorization.

221121020101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5264786192893.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221121020101002 its reverse (200101020121122), we get a palindrome (421222040222124).

The spelling of 221121020101002 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, twenty million, one hundred one thousand, two".