102220121222220 has 192 divisors, whose sum is σ = 288090437806080. Its totient is φ = 27080890417152.

The previous prime is 102220121222057. The next prime is 102220121222279. The reversal of 102220121222220 is 22222121022201.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14563341871 + ... + 14563348889.

It is an arithmetic number, because the mean of its divisors is an integer number (1500471030240).

Almost surely, 2^{102220121222220} is an apocalyptic number.

102220121222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102220121222220 is an abundant number, since it is smaller than the sum of its proper divisors (185870316583860).

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

102220121222220 is a wasteful number, since it uses less digits than its factorization.

102220121222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9824 (or 9822 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 102220121222220 its reverse (22222121022201), we get a palindrome (124442242244421).

The spelling of 102220121222220 in words is "one hundred two trillion, two hundred twenty billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty".