1010201001220 has 48 divisors (see below), whose sum is σ = 2171156093568. Its totient is φ = 394610711040.

The previous prime is 1010201001209. The next prime is 1010201001223. The reversal of 1010201001220 is 221001020101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1010201001197 and 1010201001206.

It is not an unprimeable number, because it can be changed into a prime (1010201001223) 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, 4703212 + ... + 4913308.

It is an arithmetic number, because the mean of its divisors is an integer number (45232418616).

Almost surely, 2^{1010201001220} is an apocalyptic number.

1010201001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010201001220 is an abundant number, since it is smaller than the sum of its proper divisors (1160955092348).

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

1010201001220 is a wasteful number, since it uses less digits than its factorization.

1010201001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215740 (or 215738 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1010201001220 its reverse (221001020101), we get a palindrome (1231202021321).

The spelling of 1010201001220 in words is "one trillion, ten billion, two hundred one million, one thousand, two hundred twenty".