1210020010 has 8 divisors (see below), whose sum is σ = 2178036036. Its totient is φ = 484008000.

The previous prime is 1210019989. The next prime is 1210020013. The reversal of 1210020010 is 100200121.

It can be written as a sum of positive squares in 2 ways, for example, as 1124327961 + 85692049 = 33531^2 + 9257^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1210019975 and 1210020002.

It is not an unprimeable number, because it can be changed into a prime (1210020013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60500991 + ... + 60501010.

Almost surely, 2^1210020010 is an apocalyptic number.

1210020010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210020010 is a deficient number, since it is larger than the sum of its proper divisors (968016026).

1210020010 is a wasteful number, since it uses less digits than its factorization.

1210020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121002008.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1210020010 is about 34785.3418841902. The cubic root of 1210020010 is about 1065.6081107565.

Adding to 1210020010 its reverse (100200121), we get a palindrome (1310220131).

The spelling of 1210020010 in words is "one billion, two hundred ten million, twenty thousand, ten".