1101020001210 has 96 divisors (see below), whose sum is σ = 2980295894160. Its totient is φ = 281756703744.

The previous prime is 1101020001203. The next prime is 1101020001253. The reversal of 1101020001210 is 121000201011.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 444759611409 + 656260389801 = 666903^2 + 810099^2 .

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 = 1101020001192 and 1101020001201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2021545 + ... + 2507724.

Almost surely, 2^{1101020001210} is an apocalyptic number.

1101020001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1101020001210 is an abundant number, since it is smaller than the sum of its proper divisors (1879275892950).

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

1101020001210 is a wasteful number, since it uses less digits than its factorization.

1101020001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4529392 (or 4529389 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1101020001210 its reverse (121000201011), we get a palindrome (1222020202221).

The spelling of 1101020001210 in words is "one trillion, one hundred one billion, twenty million, one thousand, two hundred ten".