1023220102120 has 64 divisors (see below), whose sum is σ = 2331252576000. Its totient is φ = 404143584768.

The previous prime is 1023220102103. The next prime is 1023220102123. The reversal of 1023220102120 is 212010223201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1023220102094 and 1023220102103.

It is not an unprimeable number, because it can be changed into a prime (1023220102123) 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, 2451661 + ... + 2838499.

It is an arithmetic number, because the mean of its divisors is an integer number (36425821500).

Almost surely, 2^{1023220102120} is an apocalyptic number.

1023220102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023220102120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1165626288000).

1023220102120 is an abundant number, since it is smaller than the sum of its proper divisors (1308032473880).

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

1023220102120 is a wasteful number, since it uses less digits than its factorization.

1023220102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387682 (or 387678 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1023220102120 its reverse (212010223201), we get a palindrome (1235230325321).

The spelling of 1023220102120 in words is "one trillion, twenty-three billion, two hundred twenty million, one hundred two thousand, one hundred twenty".