101220200010 has 24 divisors (see below), whose sum is σ = 263172520260. Its totient is φ = 26992053312.

The previous prime is 101220199973. The next prime is 101220200017. The reversal of 101220200010 is 10002022101.

It can be written as a sum of positive squares in 2 ways, for example, as 100474418529 + 745781481 = 316977^2 + 27309^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 101220199965 and 101220200001.

It is not an unprimeable number, because it can be changed into a prime (101220200017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 562334355 + ... + 562334534.

Almost surely, 2^101220200010 is an apocalyptic number.

101220200010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101220200010 is an abundant number, since it is smaller than the sum of its proper divisors (161952320250).

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

101220200010 is a wasteful number, since it uses less digits than its factorization.

101220200010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124668902 (or 1124668899 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 101220200010 its reverse (10002022101), we get a palindrome (111222222111).

The spelling of 101220200010 in words is "one hundred one billion, two hundred twenty million, two hundred thousand, ten".