201221211000102 has 32 divisors (see below), whose sum is σ = 412063675943040. Its totient is φ = 65472180493440.

The previous prime is 201221211000101. The next prime is 201221211000127. The reversal of 201221211000102 is 201000112122102.

201221211000102 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201221211000101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247821027 + ... + 248631662.

It is an arithmetic number, because the mean of its divisors is an integer number (12876989873220).

Almost surely, 2^{201221211000102} is an apocalyptic number.

201221211000102 is an abundant number, since it is smaller than the sum of its proper divisors (210842464942938).

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

201221211000102 is a wasteful number, since it uses less digits than its factorization.

201221211000102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496454308.

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

Adding to 201221211000102 its reverse (201000112122102), we get a palindrome (402221323122204).

The spelling of 201221211000102 in words is "two hundred one trillion, two hundred twenty-one billion, two hundred eleven million, one hundred two", and thus it is an aban number.