102222111002020 has 48 divisors (see below), whose sum is σ = 235131590035440. Its totient is φ = 37156596936704.

The previous prime is 102222111001931. The next prime is 102222111002021. The reversal of 102222111002020 is 20200111222201.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2851039004004 + 99371071998016 = 1688502^2 + 9968504^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102222111001985 and 102222111002003.

It is not an unprimeable number, because it can be changed into a prime (102222111002021) 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, 5183667169 + ... + 5183686888.

It is an arithmetic number, because the mean of its divisors is an integer number (4898574792405).

Almost surely, 2^{102222111002020} is an apocalyptic number.

102222111002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102222111002020 is an abundant number, since it is smaller than the sum of its proper divisors (132909479033420).

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

102222111002020 is a wasteful number, since it uses less digits than its factorization.

102222111002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10367354112 (or 10367354110 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102222111002020 its reverse (20200111222201), we get a palindrome (122422222224221).

The spelling of 102222111002020 in words is "one hundred two trillion, two hundred twenty-two billion, one hundred eleven million, two thousand, twenty".