20120221200102 has 32 divisors (see below), whose sum is σ = 41666130298080. Its totient is φ = 6469548933120.

The previous prime is 20120221200077. The next prime is 20120221200133. The reversal of 20120221200102 is 20100212202102.

It is a super-2 number, since 2×20120221200102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52707099 + ... + 53087462.

It is an arithmetic number, because the mean of its divisors is an integer number (1302066571815).

Almost surely, 2^{20120221200102} is an apocalyptic number.

20120221200102 is an abundant number, since it is smaller than the sum of its proper divisors (21545909097978).

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

20120221200102 is a wasteful number, since it uses less digits than its factorization.

20120221200102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105795688.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20120221200102 its reverse (20100212202102), we get a palindrome (40220433402204).

The spelling of 20120221200102 in words is "twenty trillion, one hundred twenty billion, two hundred twenty-one million, two hundred thousand, one hundred two".